New commenting system

Todo: get list of commenters to check if logged in user has
commented/thanked
Merge branch 'master' into design_merge
Merge branch 'master' into design_merge
Fix new thanking/commenting method
Animation tweaks, navigation tweaks
Merge branch 'master' into design_merge
Allow posts with no tags
Minify JS, style inline comment field
Add character counter
Move comments around a little
Merge branch 'design_merge'