docs(jqLite): clarify that Debug Data must be enabled for scope/isolateScope methods

Closes #9515
Closes #10123
feat(ngModelController): add $setDirty method

- extract existing functionality to public method: $setDirty
- add tests to corresponding changes
- refactor code to use extracted method

Closes #10038
Closes #10049
doc(ngModelController): move example below members
docs(CHANGELOG): add info about $parse breaking change in 1.3.3

Closes #10054