Do not run Coveralls report locally
Fixes deprecation issues with controller specs
Fixes deprecation issues with feature specs. Removes Spork.

Spork was causing issues with Faker although most likely I did not
configure it correctly. I removed it for the time being.
Fixes deprecation issues with helper specs
Fixes remaining deprecation issues

This fixes the remaining depcrecation issues and fixes the problem with
the main cancancan repo not being updated for rspec3.
Merge pull request #101 from 18F/feature/fix_rspec_deprecations

Fixes rspec deprecations