Merge Twenty Fifteen commits [30801-30806], [30808-30811] to the 4.1 branch.


git-svn-id: https://develop.svn.wordpress.org/branches/4.1@30814 602fd350-edb4-49c9-b593-d223f7449a82
TinyMCE, image toolbar: remove the animation and make the box-shadow lighter.

Merges [30812] to the 4.1 branch.

props melchoyce.
fixes #30664.


git-svn-id: https://develop.svn.wordpress.org/branches/4.1@30815 602fd350-edb4-49c9-b593-d223f7449a82
Fix the search field width in the media modal, media library grid and on the install new plugins screen.

Merges [30813] to the 4.1 branch.

props helen.
fixes #30658.


git-svn-id: https://develop.svn.wordpress.org/branches/4.1@30816 602fd350-edb4-49c9-b593-d223f7449a82
Editor focus: Don't trigger when typing while the mouse is outside the editor.

Merges [30817] to the 4.1 branch.

props avryl.
fixes #20668.


git-svn-id: https://develop.svn.wordpress.org/branches/4.1@30818 602fd350-edb4-49c9-b593-d223f7449a82
Allow the `type` argument to be passed through `get_the_pagination()` as long as its value isn't `array`.

See #29808


git-svn-id: https://develop.svn.wordpress.org/branches/4.1@30819 602fd350-edb4-49c9-b593-d223f7449a82