Removed Class Files
Fixed bug in upload function which caused files to be posted multiple times.

The upload function never closed the file input, which made the delete() function not work.
Added windows commands to readme.
Merge branch 'master' of https://github.com/JordanSekky/groupsnap
Merge pull request #3 from JordanSekky/master

Fixed bug, Updated readme, Removed Class Files.