Upgraded maven-compiler-plugin from 2.3.2 to 3.0
Upgraded maven-release-plugin from 2.1 to 2.4
Upgraded maven-jar-plugin from 2.3.1 to 2.4
Upgraded maven-javadoc-plugin from 2.7 to 2.9
Upgraded maven-source-plugin from 2.1.2 to 2.2.1
Upgraded maven-javadoc-plugin from 2.7 to 2.9
Upgraded maven-jxr-plugin from 2.2 to 2.3
Upgraded (commented out) findbugs-maven-plugin from 2.0.1 to 2.5.2
Upgraded logback-classic from 0.9.24 to 1.0.9
Upgraded junit from 4.7 to 4.11
Upgraded mockito-all from 1.8.1 to 1.9.5
Upgraded slf4j-api from 1.6.1 to 1.7.2
Merge pull request #85 from jplock/deps

Upgraded dependencies (except for Jackson) to latest versions