differentiating visited topics better, fixing extra white space in the title header (also realigning title header)
Merge pull request #1558 from awesomerobot/master

differentiating visited topics better, fixing extra white space & alignment in header
fix images height on IE
fix code highlithing in list
fix quote reply z-order
remove bottom border on posts-wrapper
tighten up spacing on notification control
don't define bgcolor on in-reply-to
fix last activity column in suggested topics
RSS feeds should contain only publicly-available posts
FIX: topic filter menu dissapeared
Restrict SIZE= to numbers
Fix JSHINT
fixing alignment on replies, buttons - also making topic new gutter link visible on touch
Use i18n for the word Cancel in admin/.../user.js.handlebars
Screened ip address can be edited, deleted, and changed to allow or block.
topic page: alignment fixes for replies, minor alignment changes
even out blockquote paras w/top & bottom margin
even out blockquote top/bottom padding
Support for per-user API keys