Combine tob bar navigation with off-screen navigation
Add debug info to pages in development
Add manufacturers
Add links to manufacturer web sites
Tweak styles for manufacturers and navigation
Customize Rails modules

Load only those modules necessary to serve up the application.
Select active navigation tab
Update gems
Center logo on small screens
Add contact logo
Add manufacturer logos
Change Products to Manufacturers
User vector graphics for logos
Merge branch 'feature/manufacturers' into develop