Added support for maxTime and minTime

Also updated _optionTimepicker to only _updateTimepicker if it's the current instance.
Fixed bug with zero hour and zero minute when setting maxTime and minTime
Manually merged pull request #76,
Fixes a bug with updating timepicker when one being updated isn't the one being displayed. Also adds support for minTime and maxTime.
Thanks @phazei

Also added a working example and fixed the existing messy min / max example to use the new options
Manually merged pull request #76,
Fixes a bug with updating timepicker when one being updated isn't the one being displayed. Also adds support for minTime and maxTime.
Thanks @phazei

Also added a working example and fixed the existing messy min / max example to use the new options
Added credits for the fixed and options. Updated to release 0.3.3