This patch does the following:
- Instead of scoping to the inventory group name, we scope
to the play hosts. This allows the execution of the role
using limits to still execute the necessary tasks.
- A little style update is done to improve readability.
- Some includes are changed from static to dynamic to
improve execution speed.
- The tag for the translations async finalisation is
changed to 'horizon-config' to match the rest of the
config related tasks, including the task which starts the
async process.
- The enabling and starting up of Apache is moved to the
handler so that it's all done in one task.
Change-Id: If9726035d1fae0ec78aead38eb85f4d30a45a07c