Added is_draft column into review table.
Added ability to save new review as draft.
Adjusted review entity view to support drafts.
Adjusted list of reviews in user profile to support drafts.
Not counting drafts in stats block on home page.
Fixed checking in review entity view.
Added a note about license changes on review creation page.
Adjusted review editor view to support drafts.
Merge branch 'master' into drafts
Fixed messages displayed after review creation.
Fixed Babel configuration.
More Babel-related fixes.
Grammar.
Swapped buttons in review editor.
Added link back to review page into review editor.
Link with info about Markdown should open in a new tab.
It is now possible to change selected license if review is not yet published.
Link to info about licenses should open in a new tab.