Issue #1318 New account size and spacing tweaks

Made option to create a new account more obvious.
Spacing
Added system for optional apps to modify settings
Fix confirmation dialog when exiting editor (#1756)
Fix VideoUrl.get_type_display (#1760)
Merge pull request #1761 from pculture/gh-1760

Fix VideoUrl.get_type_display (#1760)
Merge pull request #1738 from Lynxfive/staging

Issue #1318 New account Size and Spacing
Merge pull request #1758 from pculture/optionalappsettings

Added system for optional apps to modify settings
Merge pull request #1759 from pculture/gh-1756

Fix confirmation dialog when exiting editor (#1756)
20px was too big for the links, made it 16.
Merge branch 'staging' into gh-1766