RF-13343: setupFragmentFromWidget reimplemented to use component options access
* the old way of retrieving component options - parsing JSON was -
  replaced with using of standard RichFaces.component().options API
* methods for parsing JSON removed
* NOTE that this commit does not mirror exactly RF page fragments repository
RF13343: tests for page fragments which use JS strategy added
metamer: two tests for r:tab fixed
Metamer: tests for editor renamed in order to follow naming conventions
fragments: choicePicker: added feature for picking by index ranges,added test for it

* NOTE it does not mirror exactly the commit from RF 5 repository
new test for selection inside EDT created
checkstyle violation fixed