Make glimage filenames unique to make accessing its history easier
Merge pull request #23 from sarupbanskota/master

New glitterposts feature + OpenID auth with SReg + polymorphic and better looking comments. Better colors and styling
Update README.markdown
File level history works
File level history for glimages
Merge https://github.com/EmilyDirsh/GlitterGallery on jun25. Right after pull#23