add nav, Customer list to show Customer + bugfix

fixed a problem with updating customers
add User count to Customer list view
restore full nav, info to the views

I ended up pulling two of the RSpec tests, will replace with
capybara-minitest-spec. It doesn't make sense to me to spend more time
chasing my tail trying to figure out why the test fails when the system
is succeeding!

I ended up dealing with the views first because it was so clunky getting
around, not to mention that I was going to need to add cancel to the
views.