The problem is that distributions like Debian or Ubuntu require us not to ship the dependencies ourselves, but to use the ones from the package repositories. And if we compile Panda3D against libraries from the Debian/Ubuntu repository, we are locked to that version, so we need to make a different .deb for each version of Ubuntu.
Linux Mint 17.1 Cinnamon is based on Ubuntu Trusty Tahr, which can be downloaded in this thread. Alternatively, if you’re feeling adventurous, you can try this development build:
buildbot.panda3d.org/downloads/0 … 0620457df/
(Although it’s still missing a few minor things, including libRocket)