Add "Maraschino-custom" 

Add "Maraschino-custom" for those who wish to install a alternative branch of maraschino.
Asks for a git repository on install on dsm.
Make completes successfully  and package can be installed and run. I couldn't figure out the the "DNAME" variable so it could be slightly wrong but package works as expected.

Just wanted to know why, looks like a good reason enough.