Prevent 422 status code with exception for invalid CSRF tokens

When the user tries to submit a form with invalidated session, this fix
will prevent it from raising an error
upgrade to jasmine 2.0.2 and jasmine-2 branch of guard-jasmine
Merge pull request #429 from ministryofjustice/upgrade-jasmine

Upgrade to jasmine 2.0.2
Increase poltergeist timeout, prevents some intermittent failures
Log to Logstash when authenticity toke is invalid

Configured it for Test environment so all the tests pass as expected.
Merge pull request #427 from ministryofjustice/76785866-csrf

Prevent 422 status code with exception for invalid CSRF tokens
Merge pull request #430 from ministryofjustice/test-timeout

Increase poltergeist timeout, prevents some intermittent failures
Removing duplication for Code Climate
Copy change, renamed the button text

As per ticket:
https://www.pivotaltracker.com/story/show/77186876
Merge pull request #432 from ministryofjustice/green-button

Copy change, renamed the button text
further refactoring
temp patch for the CSS for live phase
Merge pull request #433 from ministryofjustice/live-phase-patch

temp patch for the CSS for live phase
coffee script to handle hiding and showing of claimant blocks depending on number of claimants entered
Merge pull request #431 from ministryofjustice/remove-duplication

Removing duplication for Code Climate
hide OR when JS on
removed css class has_multiple to prevent unneeded JS running
refactoring spec
Ensure pnly one claimant is shown when switching to organisation, and the original number of claimants shown when switching back to individual
Ensure Is Address same as claimant 1 question is asked for claimants 2 - 4