Add theme files and edit views to use main nav and content containers

Added theme files, edited views so content would show correctly.
Merge branch 'Theme' into org

Conflicts:
	Gemfile
	Gemfile.lock
	app/assets/javascripts/application.js
	app/views/home/index.html.erb
	app/views/layouts/_navigation.html.erb
resolve gemfile conflicts
Resolve gefile conflict
resolve application.js conflict
Resolve Index.html conflict
resolve nav.html conflict
Resolved merge conflicts and got theme content displayed correctly.