Allow multiple selection from the AutoCompleteEditor using Tokens and properly commit it.

Expose a way to control the exact string visualized in the DecimalEditor. After entering 1234.2 in the editor, users should be able to configure the string to see 1,234.20.
Available in minor release 2017.2.0602. It will also be available in the R2 2017 SP release.

When any gesture recognizer is added to the DataForm(e.g. TapGestureRecognizer) events are never fired. 

AutoComplete editor does not have RTL support :
- The clear icon ("X") is on the right side and not on the left side.
- The list of options is aligned to the left on not to right.

The validation message is on the left side and not on the right side.

When setting a SliderEditor for a property of the DataForm source,  currently it shows only a slider - provide a way to display the slider value as well.

Currently DataForm for Xamarin.Forms provides ToggleButtonEditor and CheckBoxEditor for boolean values.  We can add a SwitchEditor as well, as it is available for the native Android and iOS DataForms.

For integer values users may use the IntegerEditor - provide a way to set the number formatting, for example add a thousand separator.