Merge pull request #15 from opinali/master

Change proto namespace; Validate SSL ads
openrtb 0.7.0
[maven-release-plugin] prepare release 0.7.0
[maven-release-plugin] prepare for next development iteration
Protobuf 2.6.0
[maven-release-plugin] prepare release 0.7.1
[maven-release-plugin] prepare for next development iteration