Changes for version 4.

- (foundation) Remove extensions for site build from foundation pom.
- (standard-oss) Remove sonatype snapshot repo definition from pom.
- (foundation) Upgrade scm plugin to 1.9 (from 1.8.1)
- (standard) Upgrade commons-beanutils dependency to 1.9.1 (from 1.8.3)
- (standard) Upgrade commons-codec dependency to 1.9 (from 1.8)
- (standard) Upgrade commons-lang dependency to 3.2.1 (from 3.1)
- (foundation) Upgrade findbugs to 2.0.3 (from 2.0.2), removed hardcoded plugin
- (standard) Upgrade jackson dependency to 2.3.1 (from 2.3.0)
- updated policy jar to version 2.
- use license file in the policy jar, removing the need the basepom.main.basedir.