Open trusty-eol branch for fix backports

Kludge requirements sufficiently for unit testing.

Change-Id: I91f6228da6b9044651f527c6474734dcd7a05dff

.gitreview

@@ -2,3 +2,4 @@
 host=review.opendev.org
 port=29418
 project=openstack/charm-percona-cluster.git
+defaultbranch=trusty-eol

requirements.txt

@@ -1,6 +1,12 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# TODO: Distill the func test requirements from the lint/unit test
+#       requirements.  They are intertwined.  Also, Zaza itself should specify
+#       all of its own requirements and if it doesn't, fix it there.
+#
 pbr>=1.8.0,<1.9.0
 simplejson>=2.2.0
 netifaces>=0.10.4

test-requirements.txt

@@ -1,29 +1,17 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# TODO: Distill the func test requirements from the lint/unit test
+#       requirements.  They are intertwined.  Also, Zaza itself should specify
+#       all of its own requirements and if it doesn't, fix it there.
+#
 charm-tools>=2.4.4
-coverage>=3.6
+requests>=2.18.4
 mock>=1.2
 flake8>=2.2.4,<=2.4.1
 stestr>=2.2.0
-requests>=2.18.4
-# BEGIN: Amulet OpenStack Charm Helper Requirements
-# Liberty client lower constraints
-amulet>=1.14.3,<2.0;python_version=='2.7'
-bundletester>=0.6.1,<1.0;python_version=='2.7'
-python-ceilometerclient>=1.5.0
-python-cinderclient>=1.4.0
-python-glanceclient>=1.1.0
-python-heatclient>=0.8.0
-python-keystoneclient>=1.7.1
-python-neutronclient>=3.1.0
-python-novaclient>=2.30.1
-python-openstackclient>=1.7.0
-python-swiftclient>=2.6.0
-pika>=0.10.0,<1.0
-distro-info
-git+https://github.com/juju/charm-helpers.git#egg=charmhelpers
-# END: Amulet OpenStack Charm Helper Requirements
-# NOTE: workaround for 14.04 pip/tox
-pytz
-pyudev  # for ceph-* charm unit tests (not mocked?)
+coverage>=4.5.2
+keyring==18.0.1
+setuptools<=40.0.0