copy previews.dir to previews.tmpDir
add comment about previews.dir removal timeframe
Merge pull request #90 from stuartf/previewsTmpDir

change previews.dir to previews.tmpDir
Bump release environment to bootstrap3 release
Update release environment to 6.0.0
Add archive etherpad install, remove git and apt
Fix up the resource dependencies, add custom pad.css
Fix require dependencies