Added a variable to not make Ansible tries to manage the state of the redis services themselves.
Changed the variable redis_service to redis_as_service and changed the documentation.
The task about the log file is not run if the file exists which prevents it from having the right permissions.
We do not need to manually check whether the file exists since "touch" will NOT create the file if it already exists and will just apply the permissions
See Ansible doc: "If touch (new in 1.4), an empty file will be created if the c(path) does not exist, while an existing file or directory will receive updated file access and modification times (similar to the way `touch` works from the command line)."
Merge branch 'feature/not_as_service' into develop

* feature/not_as_service:
  Changed the variable redis_service to redis_as_service and changed the documentation.
  Added a variable to not make Ansible tries to manage the state of the redis services themselves.
Merge branch 'feature/logfile_permissions_bug' into develop

* feature/logfile_permissions_bug:
  The task about the log file is not run if the file exists which prevents it from having the right permissions. We do not need to manually check whether the file exists since "touch" will NOT create the file if it already exists and will just apply the permissions See Ansible doc: "If touch (new in 1.4), an empty file will be created if the c(path) does not exist, while an existing file or directory will receive updated file access and modification times (similar to the way `touch` works from the command line)."

Conflicts:
	tasks/server.yml
Fixed merge.