move re funct from Ext to js module

orun/extjs/base.py

@@ -36,9 +36,6 @@ def getCmp(id):
 def getBody():
     return js.JsNode('Ext.getBody()')
 
-def re(pattern):
-    return js.RE(pattern)
-
 tip = js.JsNode('Ext.tip')
 
 class Component(js.JsObject):

orun/js.py

@@ -11,6 +11,9 @@ class RE:
     def __init__(self, re):
         self.re = re
 
+def re(pattern):
+    return RE(pattern)
+
 class FuncWithParams:
     def __init__(self, func, args = [], params = {}):
         self.func = func