Move to sonatype maven repository
Update mxcache-asm project, add javadoc and gpg plugins
Fix javadocs, use maven plugin java5 annotations instead of javadoc annotations in mxcache-maven-plugin
Fix javadocs
Use maven plugin java5 annotations instead of javadoc annotations in mxcache-maven-plugin
Update guice version and guice integration tests
Merge branch 'sonatype'
Add Travis CI build status image