Partially finished work on saving distributions.
Implemented some helper methods for JSONising and unJSONising HashMaps and double arrays. Used these for saving a distribution to the local storage. The local storage is now managed by the StorageManager.

Merge branch 'master' of ssh://github/Fingerpaint/project-code

Conflicts:
	fingerpaint/application/src/nl/tue/fingerpaint/client/Fingerpaint.java
Merge branch 'master' of ssh://github/Fingerpaint/project-code

Conflicts:
	fingerpaint/application/src/nl/tue/fingerpaint/client/Fingerpaint.java