[maven-release-plugin] prepare for next development iteration
Add explicit git ref fetch in gh-pages-update.sh
Update doc submodule commit pointer
gh-pages-update.sh changes from the 0.4.3 release
Add 0.4.2, 0.4.3 to compatible version list
Changelog and Upgrade entries for 0.4.4
Update doc submodule commit pointer
[maven-release-plugin] prepare release 0.4.4
Merge tag '0.4.4' into hadoop2

Titan 0.4.4

Conflicts:
	pom.xml
	titan-all/pom.xml
	titan-berkeleyje/pom.xml
	titan-cassandra/pom.xml
	titan-core/pom.xml
	titan-dist/pom.xml
	titan-dist/titan-dist-all/pom.xml
	titan-dist/titan-dist-berkeleyje/pom.xml
	titan-dist/titan-dist-cassandra/pom.xml
	titan-dist/titan-dist-hbase/pom.xml
	titan-dist/titan-dist-parent/pom.xml
	titan-dist/titan-dist-persistit/pom.xml
	titan-dist/titan-dist-server/pom.xml
	titan-es/pom.xml
	titan-hbase/pom.xml
	titan-lucene/pom.xml
	titan-persistit/pom.xml
	titan-rexster/pom.xml
	titan-site/pom.xml
	titan-test/pom.xml