An Update regarding branches, we plan to remove the master branch and instead use branch names depending on the version of UE they support. (e.g. for UE 4.18 the branch name is 4.18).
The default branch would be the UE version we are using in our project at any time (it is 4.18 at the time of writing this post)
If you are using or plan to use the Plugin as a submodule in your project please update/add the git submodule with the branch name you want it to track.
NOTE: That some old branches are no longer maintained, please read the README for that branch first 