Remove option checking from optparse options

These are validated by the validators in each plugin
There is no need to do this twice
https://bugzilla.redhat.com/show_bug.cgi?id=924010

Change-Id: I63054f62409e40239c5020118586f28fd4ab63fb
Ensure permissions of keystone.log are correct

keystone.log need to be writable by the keystone service
ensure the permissions are correct
https://bugzilla.redhat.com/show_bug.cgi?id=946915

Change-Id: I808084978dce7933721052fe2fb417b08b12c957
Merge "Remove option checking from optparse options"
Merge "Ensure permissions of keystone.log are correct"