Created legacy WinJS 1.0 definitions file.
Created 2.0 definitions file. Fixed a few removals from 1.0.
Created 2.1 definition file. Used 2.0 as a base and changes according to the API change doc ( http://msdn.microsoft.com/en-us/library/windows/apps/dn632432.aspx )
Renamed 'legacy' folder to 'releases'.
Missing semicolon.
Moved released versions into the root folder.
Merge pull request #2423 from jseanxu/legacy

Created separate definition files for release versions of WinJS