Updating bonecp version, adding hibernate-validator as dependency

This is what I had to change to get it running in my project:
* bonecp 0.7.1 does not work with current guava version: http://stackoverflow.com/questions/18948046/error-trying-to-configure-tomcat-global-jndi-connectionpool-with-bonecp
* hibernate-validator is needed at runtime: http://stackoverflow.com/questions/3982950/javax-validation-validationexception-unable-to-find-default-provider