Ensure default route will exist after netconfig stage is done

Fixes: #PRD-1716

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Add caching mode; cache=none breaks qemu-1.2 and 0.12 in RH derivatives
proper place
Enable gzip in Nginx for Nailgun 'text/plain' and 'application/json' content types
Move openstack cirros image upload to Astute
Quantum fixes:

* network_vlan_ranges string
* bridge mappings
* unhardcore rabbitmq default password
Merge pull request #665 from xenolog/PR1

SIMPLE: set of small fixes
drop objects_swift storage backend setting

Enable Swift if Ceph isn't selected as both images and object storage
API backend.
Merge pull request #667 from xenolog/Q32-fix-01

Quantum fixes:
Merge pull request #668 from xarses/ceph-drop-storage-objects-swift

drop objects_swift storage backend setting
Ubuntu CEPH fixes

fix error in glance::backend:ceph using wrong glance-api name
fix modssl package name
Quantum fix: losted integration bridge
Merge pull request #670 from xarses/ceph-ubuntu-fixes

Ubuntu CEPH fixes
Fixed biosgrub for ubuntu for single disk
Merge pull request #673 from kozhukalov/ubuntu-disks-biosgrub-single

Fixed biosgrub for ubuntu for single disk
Put default route after interface creation

ISSUE: Centos affected only.
For system wide configured gateway (/etc/sysconfig/network), there is no ensure
it would has been applied as a default route. It will be applied only after node's
reboot or network restart.

SOLUTION:
We should avoid using "heavy" operations like 'service network restart', thus,
we should create default route by manually adding it into routing table while
its config stage (adding GATEWAY to /etc/sysconfig/network) is being executed as well.

We should also ensure right apply order as well (L3_if_downup <||> -> Defaultroute[$def_gateway])

Fixes: #PRD-1716

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Add missed requirement for subscription

Fixes: #PRD-2080

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Quantum fix: Wrong calculate local ip address for GRE
remove debug print
RHOS needs qemu-kvm-rhev instead of qemu-kvm