Make the PTL tool more human friendly

Currently the PTL command has 2 issues that make it slightly hard to use.
1. $ ptl qa
   No official team 'qa'
   Traceback (most recent call last):
     File ".tox/venv/bin/ptl", line 10, in <module>
       sys.exit(main())
     File "/Users/tony8129/projects/openstack/openstack-infra/release-tools/releasetools/cmds/ptl.py", line 110, in main
       ptl = team['ptl']
   KeyError: 'ptl'
  Even though we know there isn't a team entry we still try to read the ptl key
2. $ ptl "stable branch maintenance"
   usage: ptl [-h] team
   ptl: error: unrecognized arguments: branch maintenance
   There appears to be no way to pass a team name with a space.

This change:
1. Only prints the team data if it seems valid
2. Handles teams with embed spaces
3. Adds to aliases for teams as I really want to look up 'qa' rather than
   'quality assurance'

Change-Id: Id5d5b4ed633df4c84b0cb96f52269a82ade2b193

releasetools/cmds/ptl.py

@@ -20,6 +20,20 @@ from releasetools import governance
 
 import mwclient
 
+ALIASES = {
+    'chef': 'Chef OpenStack',
+    'app-catalog': 'Community App Catalog',
+    'infra': 'Infrastructure',
+    'charms': 'OpenStack Charms',
+    'docs': 'Documentation',
+    'ux': 'OpenStack UX',
+    'deb': 'Packaging-deb',
+    'rpm': 'Packaging-rpm',
+    'puppet': 'Puppet OpenStack',
+    'qa': 'Quality Assurance',
+    'relmgt': 'Release Management',
+    'stable': 'Stable branch maintenance',
+}
 
 _TEMPLATE = '''
 Name        : {name}
@@ -79,11 +93,14 @@ def get_wiki_table(page_content, section):
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument(
-        'team',
+        'team', nargs='+',
         help='the team name',
     )
     args = parser.parse_args()
 
+    args.team = ' '.join(args.team)
+    args.team = ALIASES.get(args.team.lower(), args.team)
+
     team_data = governance.get_team_data()
     # Allow for case-insensitive search
     teams = {