Tidy post migration to openstack git/gerrit

Add gitreview configuration.

Switch snapcraft.yaml to use official snap.openstack location.

Move to using dpkg install of snapcraft instead of broken pypi.

Change-Id: I8d0a85ff1129b5b67c4ec6af131e7d9eb1276cc5

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack/snap-ceilometer.git

bindep.txt

@@ -1,2 +1 @@
-libsodium-dev [platform:dpkg]
-libapt-pkg-dev [platform:dpkg]
+snapcraft [platform:dpkg]

requirements.txt

@@ -1,5 +1 @@
 # Requirements to build snap
-git+https://github.com/openstack-snaps/snapcraft@fixup-install-requires#egg_name=snapcraft
-# PyPi less dependencies
-https://launchpad.net/ubuntu/+archive/primary/+files/python-apt_1.1.0~beta1build1.tar.xz
-https://launchpad.net/python-distutils-extra/trunk/2.39/+download/python-distutils-extra-2.39.tar.gz

snapcraft.yaml

@@ -41,7 +41,7 @@ parts:
       - python-memcached
       - oslo.rootwrap
       - uwsgi
-      - git+https://github.com/openstack-snaps/snap.openstack#egg=snap.openstack
+      - git+https://github.com/openstack/snap.openstack#egg=snap.openstack
     constraints: https://raw.githubusercontent.com/openstack/requirements/master/upper-constraints.txt
     build-packages:
       - libffi-dev