Update for pike release

Re-align snap with pike release.

Drop aliases as these are managed by the snap store.

Switch to Python 3.

Change-Id: Ib18988d516ec42b8620c85e67bb15d66c5a55259

snapcraft.yaml

@@ -1,5 +1,5 @@
 name: openstackclients
-version: ocata
+version: pike
 summary: OpenStack Client tools
 description: |
   OpenStackClient (aka OSC) is a command-line client for OpenStack
@@ -18,109 +18,59 @@ grade: devel
 apps:
   openstack:
     command: bin/openstack
-    aliases:
-      - openstack
   glance:
     command: bin/glance
-    aliases:
-      - glance
   neutron:
     command: bin/neutron
-    aliases:
-      - neutron
   nova:
     command: bin/nova
-    aliases:
-      - nova
   cinder:
     command: bin/cinder
-    aliases:
-      - cinder
   aodh:
      command: bin/aodh
-     aliases:
-       - aodh
   barbican:
      command: bin/barbican
-     aliases:
-       - barbican
   ceilometer:
      command: bin/ceilometer
-     aliases:
-       - ceilometer
   cloudkitty:
      command: bin/cloudkitty
-     aliases:
-       - cloudkitty
   designate:
      command: bin/designate
-     aliases:
-       - designate
   freezer:
      command: bin/freezer
-     aliases:
-       - freezer
   glance:
      command: bin/glance
-     aliases:
-       - glance
   heat:
      command: bin/heat
-     aliases:
-       - heat
   ironic:
      command: bin/ironic
-     aliases:
-       - ironic
   magnum:
      command: bin/magnum
-     aliases:
-       - magnum
   manila:
      command: bin/manila
-     aliases:
-       - manila
   mistral:
      command: bin/mistral
-     aliases:
-       - mistral
   monasca:
      command: bin/monasca
-     aliases:
-       - monasca
   murano:
      command: bin/murano
-     aliases:
-       - murano
   senlin:
      command: bin/senlin
-     aliases:
-       - senlin
   swift:
      command: bin/swift
-     aliases:
-       - swift
   tacker:
      command: bin/tacker
-     aliases:
-       - tacker
   trove:
      command: bin/trove
-     aliases:
-       - trove
   vitrage:
      command: bin/vitrage
-     aliases:
-       - vitrage
   watcher:
      command: bin/watcher
-     aliases:
-       - watcher
 
 parts:
   openstackclients:
     plugin: python
-    python-version: python2
+    python-version: python3
     python-packages:
       - aodhclient
       - python-barbicanclient
@@ -149,7 +99,7 @@ parts:
       - python-zaqarclient
       - python-neutronclient
       - python-openstackclient
-    constraints: https://raw.githubusercontent.com/openstack/requirements/stable/ocata/upper-constraints.txt
+    constraints: https://raw.githubusercontent.com/openstack/requirements/stable/pike/upper-constraints.txt
     build-packages:
       - libffi-dev
       - libssl-dev