Remove unneeded files

[mattpass]

Whilst 72mb isn't so bad as a total size for ICEcoder Desktop, speaking with Czarek Tomczak, author of PHP Desktop, he's suggested files that can be dropped and ways to get PHP Desktop down to 17mb.

See here for conversation and items that can be removed:
https://groups.google.com/forum/m/#!topic/phpdesktop/G3hb0TeoPGA