LBM engine in a LBM directory

I cannot find the way to submit a pull request concerning only the last commit I done where LBM files are in the LBM directory, and not the commit where LBM files are in the dem directory. However, as I done between these two commits a commit to remove the LBM files from the dem directory, everything seem clean (there is no duplication of lbm files and they are only in the lbm directory). At least I hope.
Besides, I am working on an example that I will submit soon.
Luc