Added deques module, deprecating queues

tests/misc/tvarious1.nim

@@ -18,15 +18,15 @@ echo v[2]
 
 # bug #569
 
-import queues
+import deques
 
 type
   TWidget = object
-    names: Queue[string]
+    names: Deque[string]
 
-var w = TWidget(names: initQueue[string]())
+var w = TWidget(names: initDeque[string]())
 
-add(w.names, "Whopie")
+addLast(w.names, "Whopie")
 
 for n in w.names: echo(n)
 

tests/stdlib/tmitems.nim

@@ -98,13 +98,13 @@ block:
     x += 10
   echo sl
 
-import queues
+import deques
 
 block:
-  var q = initQueue[int]()
-  q.add(1)
-  q.add(2)
-  q.add(3)
+  var q = initDeque[int]()
+  q.addLast(1)
+  q.addLast(2)
+  q.addLast(3)
   for x in q.mitems:
     x += 10
   echo q

tests/test_nimscript.nims

@@ -14,7 +14,7 @@ import ospaths
 # import parseopt
 import parseutils
 # import pegs
-import queues
+import deques
 import sequtils
 import strutils
 import subexes