Added .gitignore. Ignores all saved whiley files except for included examples.
Added .gitignore. Ignores all saved whiley files except for included examples.

Kodiack/WhileyWeb,DavePearce/WhileyWeb,Kodiack/WhileyWeb,Kodiack/WhileyWeb,DavePearce/WhileyWeb,DavePearce/WhileyWeb