Enclosing rules can no longer be references in actions using the `$ruleName` syntax
Fix bugs in argActionParameter

* Allow commas within template arguments of parameter types
* Allow assigning a default value to a parameter
Global attribute scopes are not supported in ANTLR 4
Show arguments, return values, and locals in completion lists
Fix exceptions which appeared during editing tests
Fix numerous problems when working with imported grammars
Build for NetBeans 8.0.1 by default