Update contrib module to latest revision (which actually builds).
Use my fork of contrib (until upstream can be built on Travis).
Add a build script which will generate freenet-ext.jar from contrib.
Use /usr/bin/env as shebang, which is available on Debian.
Update contrib.
Use locally built contrib.
Download junit to lib folder.
Downgrade to Bouncy Castle 1.49 because of the OCB IV fuckup.