Enhancement release

This release contains the following updates

Deprecation Notices:

From 1.9.0 release we are deprecating the use of Python 2.x Please do upgrade your python versions on your machines.

Bugfixes:

galaxy runner bug when testing linchpin develop with carbon #1439
linchpin libvirt provisioning fails during 'define node template' task with UndefinedVariable: 'int object' has no attribute 'memory'" error #1425
Adjust indices in libvirt node template to match changes in Ansible #1429
Linchpin nightly build fails due to "cannot find role: 14rcole.ansible_role_lp_dummy" #1408
Make linchpin look in multiple locations for ansible galaxy roles #1409
Fix hook communication #1158
Fix error preventing linchpin destroy from working #1418
Linchpin destory fails with UnboundLocalError: local variable 'prev_id' referenced before assignment #1413
When use minimum parameter, can't ssh after provision[Azure] #1416
Linchpin does not work in python3 virtual environments due to libselinux issue bug #1403

Enhancements:

Enable the key login for Azure #1381
Add a delete all option for the azure_vm #1377
Manage Azure network interfaces #1220
Can't destroy an AWS security group provisioned by linchpin #1265
Create an instruction of creating IAM user for Azure #1376
Openstack: Networking: Add support for os_recordset ansible module #822
RFE: Openstack: Networking: Add support for os_zone ansible module in linchpin topologies #823
RFE: Openstack: Networking: Add support for os_port module ansible #821
Add an example to resource group[Azure] #1375
Move inventory files into roles #1402
Improve hook communication #1230

Documentation

CI/Test Enhancements
Drop support for ansible 2.6.x or below #1353
Move nightly build script inside of repo #1373
Enable integration test for Azure #1374