0.0.4 - Ability to turn off hash in filename

- Added the ability to turn off the md5 hash being put in the filename
of output. This could be useful in development if you don't want
hashing.
- Added cleanup to remove assets without hash in filename in dest
directory if hashing is now set to true. This is useful when switching
between hash true/false in config.
0.0.5 - Added gulpplugin keyword to package.json

- Added gulpplugin keyword so that it appears on
http://gulpjs.com/plugins/