Add migration support to Quantum

implements blueprint quantum-db-upgrades

This changeset provide database migration capabilities to Quantum by
wrapping the Alembic library.

Change-Id: I8ba3a07f5a65e0fda9c0e85ed9c07c5978c53bc7

MANIFEST.in

@@ -1,6 +1,10 @@
 include AUTHORS
 include ChangeLog
 include quantum/versioninfo
+include quantum/db/migration/README
+include quantum/db/migration/alembic.ini
+include quantum/db/migration/alembic/script.py.mako
+include quantum/db/migration/alembic/versions/README
 
 exclude .gitignore
 exclude .gitreview

setup.py

@@ -112,7 +112,7 @@ setuptools.setup(
     scripts=ProjectScripts,
     install_requires=requires,
     dependency_links=depend_links,
-    include_package_data=False,
+    include_package_data=True,
     setup_requires=['setuptools_git>=0.4'],
     packages=setuptools.find_packages('.'),
     cmdclass=setup.get_cmdclass(),
@@ -140,6 +140,7 @@ setuptools.setup(
             'quantum-server = quantum.server:main',
             'quantum-debug = quantum.debug.shell:main',
             'quantum-ovs-cleanup = quantum.agent.ovs_cleanup_util:main',
+            'quantum-db-manage = quantum.db.migration.cli:main',
         ]
     },
 )

tools/pip-requires

@@ -14,3 +14,4 @@ pyudev
 sqlalchemy==0.7.9
 webob==1.2.3
 python-keystoneclient>=0.2.0
+alembic>=0.4.1