diff --git a/basis/ui/ui.factor b/basis/ui/ui.factor
index aee19279a4..37ec4f35b1 100644
--- a/basis/ui/ui.factor
+++ b/basis/ui/ui.factor
@@ -198,7 +198,7 @@ PRIVATE>
     windows get empty? not ;
 
 : ?attributes ( gadget title/attributes -- attributes )
-    dup string? [ world-attributes new swap >>title ] when
+    dup string? [ world-attributes new swap >>title ] [ clone ] if
     swap [ [ [ 1array ] [ f ] if* ] curry unless* ] curry change-gadgets ;
 
 PRIVATE>
diff --git a/core/sets/sets-docs.factor b/core/sets/sets-docs.factor
index 298fcbeeae..0fce78dd68 100755
--- a/core/sets/sets-docs.factor
+++ b/core/sets/sets-docs.factor
@@ -20,13 +20,6 @@ $nl
 { $subsection set= }
 "A word used to implement the above:"
 { $subsection unique }
-"Counting elements in a sequence:"
-{ $subsection histogram }
-{ $subsection histogram* }
-"Combinators for implementing histogram:"
-{ $subsection sequence>assoc }
-{ $subsection sequence>assoc* }
-{ $subsection sequence>hashtable }
 "Adding elements to sets:"
 { $subsection adjoin }
 { $subsection conjoin }
@@ -134,72 +127,3 @@ HELP: gather
      { "newseq" sequence } }
 { $description "Maps a quotation onto a sequence, concatenates the results of the mapping, and removes duplicates." } ;
 
-HELP: histogram
-{ $values
-    { "seq" sequence }
-    { "hashtable" hashtable }
-}
-{ $examples 
-    { $example "! Count the number of times an element appears in a sequence."
-               "USING: prettyprint sets ;"
-               "\"aaabc\" histogram ."
-               "H{ { 97 3 } { 98 1 } { 99 1 } }"
-    }
-}
-{ $description "Returns a hashtable where the keys are the elements of the sequence and the values are the number of times they appeared in that sequence." } ;
-
-HELP: histogram*
-{ $values
-    { "hashtable" hashtable } { "seq" sequence }
-    { "hashtable" hashtable }
-}
-{ $examples 
-    { $example "! Count the number of times the elements of two sequences appear."
-               "USING: prettyprint sets ;"
-               "\"aaabc\" histogram \"aaaaaabc\" histogram* ."
-               "H{ { 97 9 } { 98 2 } { 99 2 } }"
-    }
-}
-{ $description "Takes an existing hashtable and uses " { $link histogram } " to continue counting the number of occurences of each element." } ;
-
-HELP: sequence>assoc
-{ $values
-    { "seq" sequence } { "quot" quotation } { "exemplar" "an exemplar assoc" }
-    { "assoc" assoc }
-}
-{ $examples 
-    { $example "! Iterate over a sequence and increment the count at each element"
-               "USING: assocs prettyprint sets ;"
-               "\"aaabc\" [ inc-at ] H{ } sequence>assoc ."
-               "H{ { 97 3 } { 98 1 } { 99 1 } }"
-    }
-}
-{ $description "Iterates over a sequence, allowing elements of the sequence to be added to a newly created " { $snippet "assoc" } " according to the passed quotation." } ;
-
-HELP: sequence>assoc*
-{ $values
-    { "assoc" assoc } { "seq" sequence } { "quot" quotation }
-    { "assoc" assoc }
-}
-{ $examples 
-    { $example "! Iterate over a sequence and add the counts to an existing assoc"
-               "USING: assocs prettyprint sets kernel ;"
-               "H{ { 97 2 } { 98 1 } } clone \"aaabc\" [ inc-at ] sequence>assoc* ."
-               "H{ { 97 5 } { 98 2 } { 99 1 } }"
-    }
-}
-{ $description "Iterates over a sequence, allowing elements of the sequence to be added to an existing " { $snippet "assoc" } " according to the passed quotation." } ;
-
-HELP: sequence>hashtable
-{ $values
-    { "seq" sequence } { "quot" quotation }
-    { "hashtable" hashtable }
-}
-{ $examples 
-    { $example "! Count the number of times an element occurs in a sequence"
-               "USING: assocs prettyprint sets ;"
-               "\"aaabc\" [ inc-at ] sequence>hashtable ."
-               "H{ { 97 3 } { 98 1 } { 99 1 } }"
-    }
-}
-{ $description "Iterates over a sequence, allowing elements of the sequence to be added to a hashtable according to the passed quotation." } ;
diff --git a/core/sets/sets-tests.factor b/core/sets/sets-tests.factor
old mode 100644
new mode 100755
index be195a62cd..f9f8ba9e65
--- a/core/sets/sets-tests.factor
+++ b/core/sets/sets-tests.factor
@@ -30,12 +30,3 @@ IN: sets.tests
 
 [ f ] [ { 1 } { } intersects? ] unit-test
 
-[
-    H{
-        { 97 2 }
-        { 98 2 }
-        { 99 2 }
-    }
-] [
-    "aabbcc" histogram
-] unit-test
diff --git a/core/sets/sets.factor b/core/sets/sets.factor
index 421d43bb3d..062b624e8f 100755
--- a/core/sets/sets.factor
+++ b/core/sets/sets.factor
@@ -54,25 +54,3 @@ PRIVATE>
 
 : set= ( seq1 seq2 -- ? )
     [ unique ] bi@ = ;
-
-<PRIVATE
-
-: (sequence>assoc) ( seq quot assoc -- assoc )
-    [ swap curry each ] keep ; inline
-
-PRIVATE>
-
-: sequence>assoc* ( assoc seq quot: ( obj assoc -- ) -- assoc )
-    rot (sequence>assoc) ; inline
-
-: sequence>assoc ( seq quot: ( obj assoc -- ) exemplar -- assoc )
-    clone (sequence>assoc) ; inline
-
-: sequence>hashtable ( seq quot: ( obj hashtable -- ) -- hashtable )
-    H{ } sequence>assoc ; inline
-
-: histogram* ( hashtable seq -- hashtable )
-    [ inc-at ] sequence>assoc* ;
-
-: histogram ( seq -- hashtable )
-    [ inc-at ] sequence>hashtable ;
diff --git a/extra/game-worlds/game-worlds.factor b/extra/game-worlds/game-worlds.factor
index 2fb115b5d0..542c48fbae 100644
--- a/extra/game-worlds/game-worlds.factor
+++ b/extra/game-worlds/game-worlds.factor
@@ -1,5 +1,5 @@
 USING: accessors game-input game-loop kernel math ui.gadgets
-ui.gadgets.worlds ui.gestures ;
+ui.gadgets.worlds ui.gestures threads ;
 IN: game-worlds
 
 TUPLE: game-world < world
@@ -9,7 +9,7 @@ TUPLE: game-world < world
 GENERIC: tick-length ( world -- millis )
 
 M: game-world draw*
-    swap >>tick-slice draw-world ;
+    swap >>tick-slice relayout-1 yield ;
 
 M: game-world begin-world
     open-game-input 
diff --git a/extra/histogram/histogram-docs.factor b/extra/histogram/histogram-docs.factor
new file mode 100755
index 0000000000..d81400fc0b
--- /dev/null
+++ b/extra/histogram/histogram-docs.factor
@@ -0,0 +1,83 @@
+IN: histogram
+USING: help.markup help.syntax sequences hashtables quotations assocs ;
+
+HELP: histogram
+{ $values
+    { "seq" sequence }
+    { "hashtable" hashtable }
+}
+{ $examples 
+    { $example "! Count the number of times an element appears in a sequence."
+               "USING: prettyprint sets ;"
+               "\"aaabc\" histogram ."
+               "H{ { 97 3 } { 98 1 } { 99 1 } }"
+    }
+}
+{ $description "Returns a hashtable where the keys are the elements of the sequence and the values are the number of times they appeared in that sequence." } ;
+
+HELP: histogram*
+{ $values
+    { "hashtable" hashtable } { "seq" sequence }
+    { "hashtable" hashtable }
+}
+{ $examples 
+    { $example "! Count the number of times the elements of two sequences appear."
+               "USING: prettyprint sets ;"
+               "\"aaabc\" histogram \"aaaaaabc\" histogram* ."
+               "H{ { 97 9 } { 98 2 } { 99 2 } }"
+    }
+}
+{ $description "Takes an existing hashtable and uses " { $link histogram } " to continue counting the number of occurences of each element." } ;
+
+HELP: sequence>assoc
+{ $values
+    { "seq" sequence } { "quot" quotation } { "exemplar" "an exemplar assoc" }
+    { "assoc" assoc }
+}
+{ $examples 
+    { $example "! Iterate over a sequence and increment the count at each element"
+               "USING: assocs prettyprint sets ;"
+               "\"aaabc\" [ inc-at ] H{ } sequence>assoc ."
+               "H{ { 97 3 } { 98 1 } { 99 1 } }"
+    }
+}
+{ $description "Iterates over a sequence, allowing elements of the sequence to be added to a newly created " { $snippet "assoc" } " according to the passed quotation." } ;
+
+HELP: sequence>assoc*
+{ $values
+    { "assoc" assoc } { "seq" sequence } { "quot" quotation }
+    { "assoc" assoc }
+}
+{ $examples 
+    { $example "! Iterate over a sequence and add the counts to an existing assoc"
+               "USING: assocs prettyprint sets kernel ;"
+               "H{ { 97 2 } { 98 1 } } clone \"aaabc\" [ inc-at ] sequence>assoc* ."
+               "H{ { 97 5 } { 98 2 } { 99 1 } }"
+    }
+}
+{ $description "Iterates over a sequence, allowing elements of the sequence to be added to an existing " { $snippet "assoc" } " according to the passed quotation." } ;
+
+HELP: sequence>hashtable
+{ $values
+    { "seq" sequence } { "quot" quotation }
+    { "hashtable" hashtable }
+}
+{ $examples 
+    { $example "! Count the number of times an element occurs in a sequence"
+               "USING: assocs prettyprint sets ;"
+               "\"aaabc\" [ inc-at ] sequence>hashtable ."
+               "H{ { 97 3 } { 98 1 } { 99 1 } }"
+    }
+}
+{ $description "Iterates over a sequence, allowing elements of the sequence to be added to a hashtable according to the passed quotation." } ;
+
+ARTICLE: "histogram" "Computing histograms"
+"Counting elements in a sequence:"
+{ $subsection histogram }
+{ $subsection histogram* }
+"Combinators for implementing histogram:"
+{ $subsection sequence>assoc }
+{ $subsection sequence>assoc* }
+{ $subsection sequence>hashtable } ;
+
+ABOUT: "histogram"
diff --git a/extra/histogram/histogram-tests.factor b/extra/histogram/histogram-tests.factor
new file mode 100755
index 0000000000..f0e7b3e80e
--- /dev/null
+++ b/extra/histogram/histogram-tests.factor
@@ -0,0 +1,12 @@
+IN: histogram.tests
+USING: help.markup help.syntax tools.test histogram ;
+
+[
+    H{
+        { 97 2 }
+        { 98 2 }
+        { 99 2 }
+    }
+] [
+    "aabbcc" histogram
+] unit-test
diff --git a/extra/histogram/histogram.factor b/extra/histogram/histogram.factor
new file mode 100755
index 0000000000..70ddfd3af5
--- /dev/null
+++ b/extra/histogram/histogram.factor
@@ -0,0 +1,26 @@
+! Copyright (C) 2009 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel sequences assocs ;
+IN: histogram
+
+<PRIVATE
+
+: (sequence>assoc) ( seq quot assoc -- assoc )
+    [ swap curry each ] keep ; inline
+
+PRIVATE>
+
+: sequence>assoc* ( assoc seq quot: ( obj assoc -- ) -- assoc )
+    rot (sequence>assoc) ; inline
+
+: sequence>assoc ( seq quot: ( obj assoc -- ) exemplar -- assoc )
+    clone (sequence>assoc) ; inline
+
+: sequence>hashtable ( seq quot: ( obj hashtable -- ) -- hashtable )
+    H{ } sequence>assoc ; inline
+
+: histogram* ( hashtable seq -- hashtable )
+    [ inc-at ] sequence>assoc* ;
+
+: histogram ( seq -- hashtable )
+    [ inc-at ] sequence>hashtable ;
diff --git a/extra/tokyo/alien/tcbdb/tcbdb.factor b/extra/tokyo/alien/tcbdb/tcbdb.factor
old mode 100644
new mode 100755
index 730423c169..8739e04608
--- a/extra/tokyo/alien/tcbdb/tcbdb.factor
+++ b/extra/tokyo/alien/tcbdb/tcbdb.factor
@@ -116,7 +116,7 @@ FUNCTION: ulonglong tcbdbbnum ( TCBDB* bdb ) ;
 FUNCTION: uint tcbdbalign ( TCBDB* bdb ) ;
 FUNCTION: uint tcbdbfbpmax ( TCBDB* bdb ) ;
 FUNCTION: ulonglong tcbdbinode ( TCBDB* bdb ) ;
-FUNCTION: time_t tcbdbmtime ( TCBDB* bdb ) ;
+FUNCTION: tokyo_time_t tcbdbmtime ( TCBDB* bdb ) ;
 FUNCTION: uchar tcbdbflags ( TCBDB* bdb ) ;
 FUNCTION: uchar tcbdbopts ( TCBDB* bdb ) ;
 FUNCTION: char* tcbdbopaque ( TCBDB* bdb ) ;
diff --git a/extra/tokyo/alien/tcfdb/tcfdb.factor b/extra/tokyo/alien/tcfdb/tcfdb.factor
old mode 100644
new mode 100755
index c624f86f40..91400aaf4e
--- a/extra/tokyo/alien/tcfdb/tcfdb.factor
+++ b/extra/tokyo/alien/tcfdb/tcfdb.factor
@@ -84,7 +84,7 @@ FUNCTION: uint tcfdbwidth ( TCFDB* fdb ) ;
 FUNCTION: ulonglong tcfdblimsiz ( TCFDB* fdb ) ;
 FUNCTION: ulonglong tcfdblimid ( TCFDB* fdb ) ;
 FUNCTION: ulonglong tcfdbinode ( TCFDB* fdb ) ;
-FUNCTION: time_t tcfdbmtime ( TCFDB* fdb ) ;
+FUNCTION: tokyo_time_t tcfdbmtime ( TCFDB* fdb ) ;
 FUNCTION: int tcfdbomode ( TCFDB* fdb ) ;
 FUNCTION: uchar tcfdbtype ( TCFDB* fdb ) ;
 FUNCTION: uchar tcfdbflags ( TCFDB* fdb ) ;
diff --git a/extra/tokyo/alien/tchdb/tchdb.factor b/extra/tokyo/alien/tchdb/tchdb.factor
old mode 100644
new mode 100755
index f143e9b304..3793846050
--- a/extra/tokyo/alien/tchdb/tchdb.factor
+++ b/extra/tokyo/alien/tchdb/tchdb.factor
@@ -83,7 +83,7 @@ FUNCTION: uint tchdbalign ( TCHDB* hdb ) ;
 FUNCTION: uint tchdbfbpmax ( TCHDB* hdb ) ;
 FUNCTION: ulonglong tchdbxmsiz ( TCHDB* hdb ) ;
 FUNCTION: ulonglong tchdbinode ( TCHDB* hdb ) ;
-FUNCTION: time_t tchdbmtime ( TCHDB* hdb ) ;
+FUNCTION: tokyo_time_t tchdbmtime ( TCHDB* hdb ) ;
 FUNCTION: int tchdbomode ( TCHDB* hdb ) ;
 FUNCTION: uchar tchdbtype ( TCHDB* hdb ) ;
 FUNCTION: uchar tchdbflags ( TCHDB* hdb ) ;
diff --git a/extra/tokyo/alien/tcrdb/tcrdb.factor b/extra/tokyo/alien/tcrdb/tcrdb.factor
old mode 100644
new mode 100755
index 5b7be38461..3ff3bc6428
--- a/extra/tokyo/alien/tcrdb/tcrdb.factor
+++ b/extra/tokyo/alien/tcrdb/tcrdb.factor
@@ -42,8 +42,6 @@ CONSTANT: RDBXOLCKGLB 2
 CONSTANT: RDBROCHKCON 1
 CONSTANT: RDBMONOULOG 1
 
-TYPEDEF: int bool
-
 FUNCTION: char* tcrdberrmsg ( int ecode ) ;
 FUNCTION: TCRDB* tcrdbnew ( ) ;
 FUNCTION: void tcrdbdel ( TCRDB* rdb ) ;
diff --git a/extra/tokyo/alien/tctdb/tctdb.factor b/extra/tokyo/alien/tctdb/tctdb.factor
old mode 100644
new mode 100755
index 7bcb0f278d..bb65acb2f6
--- a/extra/tokyo/alien/tctdb/tctdb.factor
+++ b/extra/tokyo/alien/tctdb/tctdb.factor
@@ -136,7 +136,7 @@ FUNCTION: ulonglong tctdbbnum ( TCTDB* tdb ) ;
 FUNCTION: uint tctdbalign ( TCTDB* tdb ) ;
 FUNCTION: uint tctdbfbpmax ( TCTDB* tdb ) ;
 FUNCTION: ulonglong tctdbinode ( TCTDB* tdb ) ;
-FUNCTION: time_t tctdbmtime ( TCTDB* tdb ) ;
+FUNCTION: tokyo_time_t tctdbmtime ( TCTDB* tdb ) ;
 FUNCTION: uchar tctdbflags ( TCTDB* tdb ) ;
 FUNCTION: uchar tctdbopts ( TCTDB* tdb ) ;
 FUNCTION: char* tctdbopaque ( TCTDB* tdb ) ;
diff --git a/extra/tokyo/alien/tcutil/tcutil.factor b/extra/tokyo/alien/tcutil/tcutil.factor
old mode 100644
new mode 100755
index 25df54d013..ac6e242be2
--- a/extra/tokyo/alien/tcutil/tcutil.factor
+++ b/extra/tokyo/alien/tcutil/tcutil.factor
@@ -19,7 +19,7 @@ C-ENUM:
     TCDBTTABLE ;
 
 ! FIXME: on windows 64bits this isn't correct, because long is 32bits there, and time_t is int64
-TYPEDEF: long time_t
+TYPEDEF: long tokyo_time_t
 
 TYPEDEF: void* TCLIST*
 
@@ -36,4 +36,4 @@ FUNCTION: void tcfree ( void* ptr ) ;
 TYPEDEF: void* TCCMP
 TYPEDEF: void* TCCODEC
 TYPEDEF: void* TCPDPROC
-TYPEDEF: voud* TCITER
+TYPEDEF: void* TCITER