Merge pull request #42 from jeffisenhart/master

code review updates
Fixes #44 - Removing the setvalue in the constructor of DateTimePicker
Fixes #45 - Removing the scheduled fixed on the setValue of DateTimePicker. It is not needed anymore.
ToggleSwitch now implements IsEditor interface
DateTimePicker now implements IsEditor interface
Slider now implements IsEditor interface
Merge pull request #47 from yuppyavd/master

Support for GWT Editors