Merge branch 'develop'
Fix dependencies. Set Travis CI environment to openjdk6.
Update README.md
Remove JDK parameter at all from Travis CI settings, increase Xmx to 1024m.
Merge branch 'master' of github.com:ezh/digi-lib-util
Reduce memory heap for Travis CI to 512mb
Adjust for digi-lib 2.3, update build configuration, README.md, bump version to 0.2.3.1.
Bump version to 0.2.3.2. Update dependencies, configuration.
Merge branch 'master' into develop
Bump to version 0.2.3.3-SNAPSHOT, add twitter.util.eval as dependency, add new support functions.