Fix class name typo in test_db_rpc_base

Change-Id: I23fd11fe4fdd2988463f2cf592d884cba72cdb41
Closes-Bug: #1281921
Remove unused 'as e' in exception blocks

Change-Id: I0bd26e1657a4e0ec40405d03d43aee9e10a13636
Closes-bug: #1287031
Embrane Plugin fails alembic migrations

Alembic migration from revision f44ab9871cd6 to 2eeaf963a447 is failing on
Embrane Plugin because the floatingips table doesn't exist.

The problem happens because the plugin is actually inheriting from OVS's Plugin,
and therefore it doesn't take part of the correct migration path at installation time.

As far as I have investigated, adding the support on ext_gw_mode and l3_support is enough to solve the problem.

Change-Id: Ide740df34d06d87fab50cf6468c5d753cb46f112
Closes-bug: 1287330
Fix NVP/Nicira nits

Some references to NVP or Nicira went overlooked during
the rebranding exercise. This patch kills the last ones.

Implements blueprint nicira-plugin-renaming

Change-Id: I9f5e4f38246adbd6f821310a0bcfc3ad40c3ad38
Merge "Embrane Plugin fails alembic migrations"
Merge "Remove unused 'as e' in exception blocks"
ML2: database needs to be initalized after drivers loaded

Previously, if you started neutron-server with an empty database some
of the tables that drivers use are not automatically created. That said,
one should probably run neutron-db-manage manually to create the tables
and not rely on neutron to do this. This regression was cause in 326b85.

Change-Id: I2c578733de0213945b31fba86a3b0ea45c02295a
Closes-bug: #1285993
Co-Authored-By: Itsuro Oda <oda@valinux.co.jp>
Merge "ML2: database needs to be initalized after drivers loaded"
Merge "Fix class name typo in test_db_rpc_base"
Merge "Fix NVP/Nicira nits"