Added case-insensitivity and whitespace-allowance

Instead of

	BUGZID:12:Commit Message

the commit message can now also be formatted as follows

	bugzid: 13 : Commit Message

without breaking the script.
Changed the revision parameters.

The original script did not work with our setup using FogBugz 8 and
Atlassian Stash. Changed it to work in that setup.