Services split, pass 2

- Nuke more services code, killing some refs in vmware plugin
- Vmware plugin foreign key relationships are temporary disabled
- Vmware unit tests are temporarily disabled
- Remove router insertion test, as its only user is going away
- Add thin service plugin shims
- Temporarily disable model sync test

Post services-split, existing neutron.conf configurations may contain
references to in-tree plugin classes.  Add thin shims so that those configs
will continue to work.

Change-Id: I5dd26def685bcc643e35badc23885afc6240ae94
Prettify tox output for functional tests

Change I6a079ad introduced some magic to enable showing test output
as the test run. Do the same for *-functional tests too, by reusing
the default testenv

Change-Id: I6d1ede1c66e7b62c68449224f274417a5d66c12f
Merge "Prettify tox output for functional tests"
Merge "Services split, pass 2"