  * Add Greenlet for Python3
  * Fix add Replaces: (?) for PSGI plugin
  * Package each python flavor separately
  * Build ruby plugins for jruby
  * Build python modules for pypy
  * Maybe build python/JAVA modules for jython
  * Package fiber and rbthreads for any ruby interpreter
  * Fix have libapache2-mod-proxy-uwsgi auto-enable and declare
    dependency on core proxy module.
  * Drop die-on-term in emperor init script with 2.1+ (see bug#799971).
