Update to Havana 2013.2 release

Use epoch to make 2013.2 newer than 2013.2.rc3

Signed-off-by: Lance Chen <cyen0312@gmail.com>
Move neutron.install into neutron-common package

Actions in neutron.install should only be run in one of the packages.

Signed-off-by: Lance Chen <cyen0312@gmail.com>