New What's New screenshots
* Enforce point size on standard sidebar items.
* Set base font size of 10pt.
* Don't touch OSX base font.
* Set font before calculating elided text.
* No need to set black font twice.
* Correctly scale / adjust images on 'What's New' page.
JS Resolver API: Wrap base64 functions

Otherwise, we get TypeErrors
Merge pull request #248 from lorenzhs/fix-base64

JS Resolver API: Wrap base64 functions
* Style fixes to ConnectionManager.
Update What's New Inbox Icon on button
* Style fixes #2.
Flatten rest of icons in use and fix Xhochy's face
Clean up inbox button a bit more
* Larger hit area for seek/volume slider.
* Disable wheel-events on seek bar.
Make a better What's New icon
Update Whats New text
Show context menu in Inbox screenshot
* Keep system font for all menus.