packet: raise lower bound on cstruct version
openflow: clean up dependencies, add version lower bounds
frenetic: rename current release
frenetic: add version lower bounds
frenetic: update dependencies for 2.0.0
frenetic: point frenetic.2.0.0 to release tarball
frenetic: Have next frenetic release (3.0.0) point to github
frenetic: change descr
frenetic: update maintainer email addresses
Merge pull request #13 from frenetic-lang/frenetic

Frenetic release