Add left-side TOC to how_to and reflections page
thoughts - layout tuning, randomize order
uservoice widget update
Merge pull request #532 from jj0hns0n/issue-456

Add left-side TOC to how_to and reflections page
enable django messages in templates, tweak
add flagging app, refs #470, thanks jj0hns0n
minor template cleanup rel to #516
Keyword upgrades - refs #518
Merge branch 'master' into integration