Invalid date (null) if end of range is not selected

[Kichrum]

STR:

1. Open demo page (angular-date-range-picker/test/index.html)
2. Click first date picker.
3. Single click on any date.
4. Click on "Apply" button.
5. Click on date picker again.
6. Single click on any date again.
7. Click on "Apply" button.

Expected result: Date range should be single day after actions 4 and 7.

Current result: "Invalid date - Nov 1, 2012", null - "2012-10-31T22:00:00.000Z", Datepicker is crashed.

[lemonlab]

This pull request solve this issue : #32

[hodak]

Thanks for opening the issue. We're sorry to say that we've stopped maintaining this project in favor of angular-mighty-datepicker. We encourage you to check it out instead.