Release 0.11 included dependencies on optional jars that were downloaded from an Archiva server running on the server community.ucs.indiana.edu. This server was hacked because of a security flaw in Archiva 1.3.6 (which I reported), and we took the server community down.
Consequently, you cannot build 0.11 from source unless you use the -Dmaven.test.skip=true option. Use of non-standard Maven repositories is bad practice, and we will avoid this in the future. Marlon
