clarify autosomal_recessive naming/definition

[jxchong]

This has been bugging me for the last 3 years but, technically the autosomal_recessive function is really doing a homozygous_recessive analysis. autosomal_recessive should equal comp_het + homozygous_recessive. I imagine it's probably too late to rename the function, but is there any way to reword the documentation to make this distinction clear and that the function is named this way for legacy reasons?

(In an ideal world an autosomal_recessive function would simultaneously identify candidate genes that contain either homozygous recessive variants or compound het variants).

[jxchong]

Or perhaps make an aliased command "homozygous_recessive" that runs autosomal_recessive?

[brentp]

I think the simplest thing is to clarify the docs.