[ADMIN_API] Move MnB create/delete msgs
MnB create and deletes have been moved out of the API calls
to the gearman client, after the creates / deletes have completed.
Also had to move billing_enable to the defaul config group.

Change-Id: I289e84d96d72a1fd493231938360f482c7820d41
General updates for Development Installation docs

Change-Id: I916962332792fcc78d64cb46af91866b59eb5d91
Merge "General updates for Development Installation docs"
[API] Support per-tenant max loadbalancers

Note: Schema altering change

Adds a new table that allows maximum number of load balancers to
be set per tenant ID. If a value is not set, the global value is
used. The per-tenant value always overrides the global value.

Change-Id: Ib7911742510756e34a4ef0ecf9380abb2a759e8e
[API] Support for LB timeout options

NOTE: Database schema altering change.

Companion commit for commit 0eb56f. Timeout values (for client,
server, connect) and connect retry values can now be specified
in the UPDATE request. E.g.:

    {
      "hpcs_action": "UPDATE",
      "loadBalancers": [
         "protocol": "http",
         "options": {
             "client_timeout": "30000",
             "server_timeout": "30000",
             "connect_timeout": "30000",
             "connect_retries": "3"
         },
         ...
      ]
    }

Default values are saved to the LOADBALANCERS table in the database
if no values are given in the JSON message. The current defaults
match the defaults in the HAProxy worker driver so pre-existing LBs
will match new LBs.

Change-Id: I2edb67e462f314837fc89ac82eaf1140291a939e
[API] Protocols are now in the DB

Change-Id: Ib0908a6dc1b8dcd2594f463bd46b676db85da4ad
[API] Fixed license date

Change-Id: I04280610f5f2704045c129a732bda04d48439264
Merge "[API] Protocols are now in the DB"
Merge "[API] Fixed license date"
[ADMIN_API] Fixed MnB metrics to be an array

Change-Id: I5886f2e5feedc66b2635e6f0235aa2f237c32f13