Added failover test for service brokers

[#78603718]
Reorganized acceptance tests into separate go packages
[#78603718]
Changing 'exclude' to 'include' for skip tests
- Ensure that 'bosh run errand acceptance-tests' doesn't break
[#78603718]
Use ruby 2.1.4
Bump broker and broker-registrar to include updates to .ruby-version
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
  Rob Dimsdale and Stev Witzel:
     Update ruby version to 2.1.4 ( Travis Success: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/40351434 )
Add plan_updatable property to template.

[#67082396]
Update README.md
Update README.md
Implement failover tests for MariaDB and broker nodes.

[#78603718]
Bump broker to include quota calculation update.

[#80639978]
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
  Ross Greenwood and Rob Dimsdale:
     Fix quota calcuation query. ( Travis Success: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/40924720 )
Removed CPU=native from haproxy compilation.

https://github.com/cloudfoundry/cf-mysql-release/issues/34

[#78517414]
Use route-registrar process instead of cf-registrar gem in cf-mysql-broker

[finishes #82252822]
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
  David Sabeti and Ross Greenwood:
     Remove route registration ( Travis Success: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/40952598 )
Remove proxies from failover test

To be implemented later
Update docs [#75080950]