resolves bug on days when DST is added.
resolves bug on days when DST is added.

vsn4ik/bootstrap-datepicker,CherryDT/bootstrap-datepicker,eternicode/bootstrap-datepicker,vsn4ik/bootstrap-datepicker,steffendietz/bootstrap-datepicker,steffendietz/bootstrap-datepicker,acrobat/bootstrap-datepicker,Azaret/bootstrap-datepicker,acrobat/bootstrap-datepicker,CherryDT/bootstrap-datepicker,Azaret/bootstrap-datepicker,eternicode/bootstrap-datepicker,uxsolutions/bootstrap-datepicker,inspur-tobacco/bootstrap-datepicker,inspur-tobacco/bootstrap-datepicker,uxsolutions/bootstrap-datepicker