Addes strike2 Clojure app

To run it:

  java -jar scripts/strike2-0.1.0-standalone.jar
Added the new striker2 JAR

Removed unused JARs
use new pdf strike through service
added back old striker jar
when no connection to strike-through service, fallback to commandline strike-through
allow 127.0.0.1/__identify__ requests - Capybara uses these to check server is available
Merge pull request #194 from ministryofjustice/strike2-integration

Use new strike-through service