Add route support

This patch includes the following new features:
(1). Add a new tab named 'Routes' to collect and display CF runtime route data.
(2). Support delete routes
update for latest rubocop
fix some rubocop issues
Fix the nil? issue due to the rubocop upgrade
addJSONDetailsLinkRow for route
Orgs and Spaces tab won't show when they have no routes
Add test to ensure non-privileged user cannot delete route
Separate used/total routes into two separate columns
Merge pull request #28 from cloudfoundry-incubator/add-route-support

Add route support