Squashed 'wp/' changes from 5577e02..07a86e6

07a86e6 Tag 3.8.3
a12cfb6 3.8.3
0afc974 Avoid stomping of bulk postdata inside the bulk_edit_posts() loop.
16f887b 3.8.3-RC1
3067ceb Recover auto-drafts lost via Quick Draft.
e635b17 Ensure edit_post() promotes an auto-draft to draft. Fixes Quick Draft.
REVERT: 5577e02 Tag 3.8.2

git-subtree-dir: wp
git-subtree-split: 07a86e692822bedd899eba2a54aa2f6d18217c94
Merge commit '5cefbfbcdf632b628de8ceb117c4762a4b08164b'