Upgrade to latest 09 October 2013

Upstream commit ca6ec50d22c5ceefecece4846c4e36a79c05e92c
Update pom.xml

Version set to short commit sha ca6ec50
Versions changed to sha ones

* maven artifact {shortSha}
* resourcces/webjars/datatables-plugins/{shortSha}

* fetching from github by fullSha
Adding the `-SNAPSHOT` back since Maven is responsible for creating the actual release.
Merge pull request #2 from leonardinius/master

Upgrade to latest 09 October 2013