v0.3.0

This release focused on adding unit tests, this allows us to make changes to this library without being afraid of breaking things.

• Added unit tests for the parsing exceptions on various platforms and fixed many bugs in the process. Some test cases were copied from here.
• Added support for handling exceptions on windows phone 8 in cordova (@kitsunde)
• Normalized the stack frame args property to be an array instead of a string.
• BREAKING: Removed url and useragent constants from stack traces
• Fixed various spelling mistakes (@johnw424, @dandv)

Please take a look at the change log for a full list of the changes.