Provide a default generic avatar icon in the My Account menu if avatars are disabled, ensuring that the link is visible at responsive sizes. See #25858.
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Adding autosave for color schemes and removing RTL handling. See #26387, props ryelle.
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git-svn-id: http://core.svn.wordpress.org/trunk@26634 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Themes: Final gutter and breakpoint adjustments.

props matveb.
fixes #26462.

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RTL: Don't flip thumbnail positions in Insert Media window.
Restores pre-3.8 behavior.

props siobhyb for the initial patch.
fixes #26461.
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git-svn-id: http://core.svn.wordpress.org/trunk@26636 1a063a9b-81f0-0310-95a4-ce76da25c4cd