This build supports basic push and continuations.
There is a also a very early WIP lightly tested (downloaded a page from nghttp2) implementation of draft-07 (compression-04) here:
BUILDS
http://ftp.mozilla.org/pub/mozilla.org/firefox/try-builds/hurley@mozilla.com-91da6264f15161fdd21498f9/
SOURCE
https://tbpl.mozilla.org/?tree=Try&rev=91da6264f15161fdd21498f9
feedback of any sort welcomed to pmcmanus@mozilla.com and hurley@mozilla.com