Use console scripts for ceilometer-collector

Blueprint: setuptools-console-scripts

Change-Id: I7d600eae8b29b3135b026dfb3ad0a848541f872e
Signed-off-by: Julien Danjou <julien@danjou.info>
Move os_* options into a group

Change-Id: I1c4942cdc474658222ab3ddcd71849150bbc8db4
Signed-off-by: Julien Danjou <julien@danjou.info>