[BUGFIX] Wrong dependency for the CMS package

Releases: 2.0.0, 1.9.1
Change-Id: I18f24076bc2bc7443e3732e14df32ab255f5a1d8
Reviewed-on: https://review.typo3.org/30991
Reviewed-by: Alexander Schnitzler
Tested-by: Alexander Schnitzler
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-on: https://review.typo3.org/31253
[TASK] Remove PHP4 compatible constructor in ApiService
[TASK] Explicitly define method/property accessibility in ApiService
[TASK] General cleanup in ApiService
[TASK] Avoid usage of "global" keyword in ApiService