Version and docs updates
Use smaller specs2 deps
Activator updated to 1.2.12 and added activator.bat
Dependency updates + few code fixes
Changed the condition checked in P25Spec to accept any permutation of the input list as opposed to just the original one.

Closes #24
Change IDEA version to 14.0.2
README enhancements
Merge branch 'master' into tn-playground

Conflicts:
	exercises/src/test/scala/pl/japila/scalania/s99/P25Spec.scala