Merge branch '2.1'

Conflicts:
	README.md
	api/pom.xml
	build/graphaware-framework-embedded/pom.xml
	build/graphaware-framework-server-community/pom.xml
	build/graphaware-framework-server-enterprise/pom.xml
	build/graphaware-runtime-module-maven-archetype/pom.xml
	build/graphaware-springmvc-maven-archetype/pom.xml
	build/graphaware-springmvc-maven-archetype/src/main/resources/archetype-resources/pom.xml
	build/pom.xml
	common/pom.xml
	examples/change-logger/pom.xml
	examples/friendship-strength-counter-module/pom.xml
	examples/friendship-strength-counter/pom.xml
	examples/node-counter/pom.xml
	pom.xml
	runtime/pom.xml
	server/pom.xml
	server/server-common/pom.xml
	server/server-community/pom.xml
	server/server-enterprise/pom.xml
	tests/pom.xml
	tx-api/pom.xml
	tx-executor/pom.xml