README.md ref to the openrtb-doubleclick group
Merge pull request #8 from opinali/master

Validator and mapper reviews
Update README.md
Update README.md
Merge pull request #9 from opinali/master

Remove commons-codec; Price crypto supports currency unit
Merge pull request #10 from opinali/master

Cleanup hexadecimal support, using Guava
Update README.md
Use openrtb 0.6.4
[maven-release-plugin] prepare release 0.6.4
[maven-release-plugin] prepare for next development iteration