I made the following changes to make DF play nice enough with lightning to install lightning and run through the behat tests (behat tests for DF are obviously failing because DF isn't actually installed, but I honestly don't think we're that far off). I'm not sure if you'll want to blindly merge this, but there should be some good info in what changed:
added composer.lock to VCS
ignored the core and profiles directories
Removed panels and IEF as dependencies because Lightning provides them and the versions conflicted. (If there's something you need in HEAD it should be easy to patch those modules)
removed composer_manager as a dependency of df_admin
I made the following changes to make DF play nice enough with lightning to install lightning and run through the behat tests (behat tests for DF are obviously failing because DF isn't actually installed, but I honestly don't think we're that far off). I'm not sure if you'll want to blindly merge this, but there should be some good info in what changed:
You can get a version of this here: https://github.com/balsama/lightning_and_df
Travis: https://travis-ci.org/balsama/lightning_and_df/builds/132656323