Merge "Add migration support to Quantum"

diff --cc tools/pip-requires
index fb7d4b241acb293bc8a19480b2c6ba928ae733ae,35ae81e44089d89e8f14ed51a9c667ae25e97309..604a65ae5bc3389abc811fc151ce46b0e38e1b0a
--- 1/tools/pip-requires
--- 2/tools/pip-requires
+++ b/tools/pip-requires
@@@ -12,5 -12,6 +12,6 @@@ netadd
  python-quantumclient>=2.0
  pyudev
  sqlalchemy==0.7.9
 -webob==1.2.3
 +webob>=1.0.8
  python-keystoneclient>=0.2.0
+ alembic>=0.4.1