upgrade factory_girl_rails to 4.4.1.
upgrade rspec to 3.0 and replace webrat with capybara.
replace spork with spring.
update rspec config and spec helpers.
bump database_cleaner to 1.3.0.
clean up Gemfile. these forks have been merged or are no longer used.
give up on shiny new rspec verifying doubles for now... rubinius doesn't work well with it.
Merge pull request #78 from botandrose/upgrade_testing_dependencies

Upgrade testing dependencies