l0rdn1kk0n/wicket-bootstrap — pull request #408 by pulse00 (2014-07-07 11:36:00+00:00)
Title: added clearButton option for DateTextFieldConfig

https://github.com/eternicode/bootstrap-datepicker/blob/8bc254a136110369684dc05a48171682ff1f3a81/docs/options.rst#clearbtn