Add global setup/teardown for integration tests
Delete mocha wrapper
Replace prepIntegration with loginAndGo and fix lots of tests
Initialize browser and database in parallel
Disable modal tests if SKIP_MODAL is set

This is needed if we are in environments where modal dialogues are broken

(#625)
Remove Nibbler remnants
Quieten logging in helper/loginAndGo
Move password reset test to password_reset.coffee
Move integration test context switch code from login
Reset fixtures before testing SSH modals
Use https box endpoint (http breaks XDM)
Merge pull request #631 from scraperwiki/global-setup-teardown

Add global setup/teardown - the big test refactor