Upgraded Spring version to 3.2.3.RELEASE
Upgraded JUnit to 4.11
Upgraded hibernate-validator to 5.0.1.Final
Upgraded commons-logging to 1.1.3
Upgraded SLF4J to 1.7.5
Upgraded hsqldb to 2.3.0
Upgraded to the latest scala-maven-plugin
Upgraded all org.apache.maven plugins to the latest versions
Cleaned up a bunch of deprecated function usages and other warnings