Added Timestamp to debug log output

Joe, et.all,

I've often wanted a timestamp on mm actions and it seemed like a good first place to start on the python side of MM. Here's a pull request that just adds a simple date/time stamp to the debug panel's output. 

For example:
Thu, 18 Jul 2013 11:39:36:
Compiling => /Users/awesomeUsernameHidden/Documents/mavensmate/Mulligan/src/classes/mulliganController.cls
............................
[Operation completed Successfully]