start annotator edits
add explanation field when edit is selected
first run at adding SQLite compatibility with our migrations
add DualMigration model for SQLite compatible migrations
Merge branch 'master' into issue220

Conflicts:
	public/css/style.css
still working on event cancellation
re-add document route
finish redlining feature
Merge pull request #309 from opengovfoundation/issue220

Issue220
Merge branch 'fix-migrations'
remove calls to Response::error
change homepage title filter placeholder
Making the document manager in the dashboard work again