Using lazybones config add bintrayRepositories <repo> after initial installation throws java.io.FileNotFoundException

[jozik]

If lazybones is installed onto a clean system with:
sdk install lazybones
Immediately running:
lazybones config add bintrayRepositories
results in a java.io.FileNotFoundException.
It looks like the "config add" command assumes the existence of a ~/.lazybones directory, so if one creates this and then runs the "config add" command, everything works as expected.