initial pass at replacing date.js with moment.js
removed datejs files, updated picker and format to momentjs
Merge branch 'develop' into topic-moment

Conflicts:
	src/Calendar.js
	src/Fields/DateField.js
	src/Format.js
Updated to latest moment.js version (2.1.0).
Added moment.js to build script.
Adding datejs back in libraries for compatibility.
Added moment to define list.
Set "Unknown" to collapse by default. Added localization string for it as well.
Merge pull request #21 from Saleslogix/topic-moment

Topic moment
Changed "This year" to "Earlier this year" and "Later this year". Removed two and three weeks/months ago. Completely refactored logic to use moment. #MBL-10081 Fixed
Removed un-used vars. #MBL-10081
Added configuration option to allow a specific language to be loaded for momentjs.
Merge pull request #22 from Saleslogix/topic-moment

Changed "This year" to "Earlier this year" and "Later this year". Remove...
Fix issue parsing the day in the calendar view control. #MBL-10085 Fixed