Extension:Drafts/Cleanup

List of stuff that needs to be done to cleanup the Drafts extension and make it not suck:

open gerrit patches


 * kill sajax
 * use jquery instead of wikibits
 * fix the database schema, add the missing index
 * fix drafts above edit box thingy
 * merge Draft and Drafts classes
 * Special:Drafts/Pagename should show drafts for Pagename
 * API meta=drafts[&title=pagename]

Patches
Merge in this order: --
 * 88243 - minor
 * 88245 - trivial
 * 88250 - killing sajax
 * 88402 - RL for globals
 * 88403 - RL for l10n
 * 88267 - timestamp bug, UX issue