- Patch #276581 by catch: wrote missing tests for contact module and simplified contact module thanks to that.  Also removed some whitespace.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.

#100641 by kkaefer, ChrisKennedy and RobRoy: change 'Submit' buttons to 'Save' to compliy with the desktop metaphor and actually tell what the button does ('we know it submits the form, but what it does?')