Fix bugs in date validation
Fix bugs for insufficient date field
Add tests
Merge branch 'date-validation' of git://github.com/pfeffed/whiteboard into pfeffed-insufficient-date-field

* 'date-validation' of git://github.com/pfeffed/whiteboard:
  Fix bugs in date validation
Merge branch 'insufficient-date-field' of git://github.com/pfeffed/whiteboard into pfeffed-insufficient-date-field

* 'insufficient-date-field' of git://github.com/pfeffed/whiteboard:
  Add tests
  Fix bugs for insufficient date field
Team Failure fixes for default time validations. #196