add failing test on parsing a request with lazy referencing
add requests and responses check, after late references has been resolved.
add test for expecting to have a warning when 100 responce's reference has a body, related to lazy referencing.
Merge pull request #244 from alikh31/alikh31/lazyreferencing

fix unnecessary warning after adding request with lazy referencing
Prepare for v0.16.0 / Format 1A7 release
Merge pull request #246 from apiaryio/zdne/prepare-v0.16.0

Prepare for v0.16.0 / Format 1A7 release
* remove 'typename' due to problem while build on gcc 4.4.3
Merge pull request #247 from klokane/klokane/fix-trouble-with-build-on-gcc4.4

* remove 'typename' due to problem while build on gcc 4.4.3
Prepare v0.16.1 release
Merge pull request #249 from apiaryio/zdne/prepare-v0.16.1

Prepare v0.16.1 release
Convert all Symbol... names to Model...
Merge pull request #252 from apiaryio/pksunkara/symbol-to-model

Convert all Symbol... names to Model...