[no issue] bump version to 13.4-angus-SNAPSHOT and update dependencies on Avro to 1.7.4 (from 1.6.3) and Scalaz to 7.0.2 (from 7.0.0-M5). remove unused json Lens code since LensT vanished from scalaz
Merge branch 'develop' into release/2013/angus
Merge branch 'release/2013/angus' into develop

Conflicts:
	extendedreflection/pom.xml
	interchange/pom.xml
	lift/pom.xml
	maven/avroschemifier/pom.xml
	maven/maven-slf4j/pom.xml
	maven/pom.xml
	pom.xml
	scala/pom.xml
	validation/pom.xml
	version.txt