Update Gemfile with more gems for testing.
Update rspec settings.
Resolve Rspec segfault issues by moving better_errors to development group.
Add Capybara DSL to Rspec config.
Lock Rack to v1.4.1 to suppress Rspec security warning.
Add basic specs for Favourites, Taggings, Tags, Relationships, & AdminUser.
Merge pull request #30 from danbartlett/testing

Start adding more tests