Update handling for duplicate service bindings
Add App Security Groups.

- add model
- add CRUD endpoints
- add api docs
[#71584314]

Signed-off-by: Zach Robinson <zrobinson@pivotallabs.com>
Add security group rule validation

* Can specify icmp, tcp, and udp rules
* Up size of rules field to 2048 (~ 30 rules)

[#71584450]

Signed-off-by: Eric Malm <emalm@pivotallabs.com>
Consolidate after :each in spec_helper
Upgrade to RSpec 2.99

Should make it easier to get to RSpec 3 eventually [#72481862]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>
Merge pull request #256 from cloudfoundry/bug/71068038-repeat-bind-request

Update handling for duplicate service bindings
Re-organize many specs under spec/unit

To make it easier to run specs in separate suites, ideally one per "layer"

[#72355828]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>