Don't resolve paths twice with plug-ins
In case of a file loaded by a plug-in (text.js or i18n.js) the relative path was wrongly resolved. Instead of set the 'parentMap' parameter again for 'makeModuleMap', just 'null' is passed since the path is already correctly resolved.
Merge pull request #1 from AIM360/weibelt/upstream/master

Don't resolve paths twice with plug-ins