we can now safely remove the updater nag
small performance improvement
Started working on the customizer
preliminary work on the customizer.
Saving and compiling on the customizer now works
background settings on the customizer are now functional
Added branding colors to the customizer
Added typography colors to the customizer
Uniting all color settings under 1 section
Added navbar background to the customizer
Simplified customizer options
Further simplifying customizer options.
Atom v5.5.3

Merge remote-tracking branch 'Shoestrap/master'.  Add in app.css for developers who want finer control over CSS overrides.  Add in custom functions file.  Update help tab to point toward the new docs.  Remove Shoestrap API key and enter Atom API key.