Bump the $wp_version.
This version string controls more than you might first imagine, but the important thing to note for now, is that this needs to contain a revision number in order for nightly builds to include a revision number.
If a nightly build doesn't include a revision number, Background Updates won't occur for Development users (after all, 4.1-beta1 == 4.1-beta1, which is already installed).
See #30405

Built from https://develop.svn.wordpress.org/trunk@30411


git-svn-id: http://core.svn.wordpress.org/trunk@30406 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use hash_equals() for old md5 hashes.

Built from https://develop.svn.wordpress.org/trunk@30412


git-svn-id: http://core.svn.wordpress.org/trunk@30407 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Form validation for password resets.

Built from https://develop.svn.wordpress.org/trunk@30417


git-svn-id: http://core.svn.wordpress.org/trunk@30412 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Playlists are video by default. props duck_

Built from https://develop.svn.wordpress.org/trunk@30422


git-svn-id: http://core.svn.wordpress.org/trunk@30417 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix typo in style filter. props miqrogroove

Built from https://develop.svn.wordpress.org/trunk@30425


git-svn-id: http://core.svn.wordpress.org/trunk@30420 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Invalidate password keys when a user's email changes.

Built from https://develop.svn.wordpress.org/trunk@30430


git-svn-id: http://core.svn.wordpress.org/trunk@30425 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: Verify HTML in captions. props azaozz

Built from https://develop.svn.wordpress.org/trunk@30435


git-svn-id: http://core.svn.wordpress.org/trunk@30430 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Press This: Ensure the error message is printed. props johnbillion

Built from https://develop.svn.wordpress.org/trunk@30438


git-svn-id: http://core.svn.wordpress.org/trunk@30433 1a063a9b-81f0-0310-95a4-ce76da25c4cd