Fixed program crashing when no random_seed is given in the config. I don't know if you want to always set a random seed as I've put in the code, or you want to just let the random seed be random.
Fixed program reporting time incorrectly to always abe 1900-01-01
Removed the requirement for minimap2 path to be set, if someone has minimap2 installed properly (e.g. via conda) then just use the system installation.