Incremented version to accurately reflect release version.

See: http://maven.apache.org/maven-release/maven-release-plugin/ , http://blogs.atlassian.com/2013/05/maven-git-flow-plugin-for-better-releases/ , http://www.radcortez.com/maven-git-release/ , http://george-stathis.com/2013/11/09/painless-maven-project-releases-with-maven-gitflow-plugin/ , and https://bitbucket.org/atlassian/jgit-flow .
Merge branch 'hotfix/1.1.20'