Fixes #33. Implemented that correct error messages appear, instead of the "If it doesn't work, the name is probably in use" from before. Error messages are now more detailed with support for localisation.
Merge branch 'master' of github.com:Fingerpaint/project-code

Conflicts:
	fingerpaint/test/src/nl/tue/fingerpaint/client/model/RectangleGeometryTest.java