Updating Underscore to 1.1.0, fixing a hasOwnProperty glitch in Scope, and a double-semicolon bug in ParentheticalNode.

src/nodes.coffee

@@ -1301,6 +1301,7 @@ exports.ParentheticalNode = class ParentheticalNode extends BaseNode
     top  = del o, 'top'
     @expression.parenthetical = true
     code = @expression.compile(o)
+    return code if top and @expression.isPureStatement o
     if @parenthetical or @isStatement o
       return if top then @tab + code + ';' else code
     "(#{code})"