Enable selinux boolean virt_use_fusefs on compute nodes

See https://bugzilla.redhat.com/show_bug.cgi?id=1015625
BZ #1043964 - Fix to move neutron setup after db setup.

https://bugzilla.redhat.com/show_bug.cgi?id=1043964

The 'neutron-db-manage upgrade' command was failing on first runs of puppet
agent due to a race condition where the database was not necessarily created
before this command was run.  The order matters, so we have now specified this
more precisely.
Merge pull request #91 from jguiditta/bz1043964_neutron_db_dep

BZ #1043964 - Fix to move neutron setup after db setup.
Merge pull request #90 from jistr/selinux_fuse

Enable selinux boolean virt_use_fusefs on compute nodes