Using updated style for branch dropdown toggle.
Lining up branch dropdown menu with the left edge of dropdown button.
Reversing icon shadow (this is based on upcoming icon shadow update in my Brackets PR).
Tweaked remote dropdown styling.
Fixed animation orientation.
Tweaked tab styling and set a min-height so that the user won't have to chase the tabs as they click through.
Merge pull request #256 from larz0/master

UI Tweaks