Check if field is of same type as parent when expanding ModelAttribute

To avoid StackOverflowError when expanding ModelAttributes,
skip call to `expand` when a treeish field is encountered. #465
Using gradle-travisci-trigger-plugin to trigger downstream demo build
Removing build dependency on http-builder
Caught up with all the compatible versions
Updating .gitignore
[#469] Fixed the arrays inside generics problem

fixes #469
[#506] Fixed media type reader to use default media type (all) when none is specified

fixes #506
[#192] Fixed problem with @JsonUnwrapped not being respected

- Added tests for unwrapped type and fixed coverage

fixes #192
[#447] Added support for @ApiOperation(hidden=[true|false])

closes #447
[#440] Add support for generating models that are represented in the ApiResponse annotations

closes #440
Fixed the broken build

- Swagger 1.3.9 introduced a breaking change in the serialization of ApiListings
- Uncommented ignored test
- Updated few more dependencies
Fixes .gitignore
Update the swagger-core depdendency to a working version
Setup scala library excludes
Updated dependency versions
[#438] Reworked the response message readers

- Deprecated class that will go away in a future version
- Introduced the a configuration in the plugin to turn on or off the
  default response message status codes

fixes #349, #451, #457
[#494] Add support for JsonGetter and JsonSetter annotations

resolves #494
[#436] Enum values with JsonValue are not supported

fixes #436
Getting ready to release 0.9.2
Updates readme with latest release