FLUID-4976: Renamed "actionAnts" to "enactors".
FLUID-4976: Renamed group namespace of "enactors" to "enactor", as well as sync the references on tableOfContents component.
FLUID-4976: Fixed unit tests.
Merge remote-tracking branch 'cindyli/FLUID-4976'

* cindyli/FLUID-4976:
  FLUID-4976: Fixed unit tests.
  FLUID-4976: Renamed group namespace of "enactors" to "enactor", as well as sync the references on tableOfContents component.
  FLUID-4976: Renamed "actionAnts" to "enactors".