Cleaned up date-parse unit tests, Date.parse methods should always return a number (timestamp) therefore use strictEqual over equal.
Improved the Date.parseMsDate method.
Simplified the Date.parse override method
We should attempt Date.parseISO last, because 99.9% of browsers support ISO 8601 formatting (IE9+, Firefox 4+)
Makes the most sense to use origParse first and only use our overrides when that does not work.
Merge pull request #50 from benhutchins/master

Improve the Date.parse overrides