Logos output

With the update to add the logos uploaded via the CMS came a whole slew of other considerations. Settings updated in the CMS are now queried and then cached forever and passed to each page. Only when a setting is updated via the CMS does the cache get cleared to re-query and then cache again forever. Also made some style fixes to a couple straggling things.

NOTE: run `composer dump-autoload` after pulling code down.

@angaither 

CC: @barryclark @DFurnes 
Good call!