Sync CLI to Cargo.toml

[rhagenson]

I implemented the changes needed for closing #36, however I am facing serious build issues with librocksdb-sys via rust-htslib on my current machine so I am going to sanity check on another machine later this evening.

[rhagenson]

Update: the sanity check on my other machine resulted in a new set of problems. Original machine: problems with rocksdb; new machine: problems with linking to GSL.

I will open the PR up for review to hopefully allow someone else to verify only the intended changes were made.

[HenningTimm]

I experienced a libgsl linking error when compiling from a conda environment. The path to libgsl that conda knew pointed to a different version than expected (or was otherwise not working). Unfortunately i cannot reliably reproduce and debug this problem. Some things that might help:

• libgsl-dev needs to be installed
• The conda package gsl needs to be installed

Maybe we should open an Issue for this.

[rhagenson]

@HenningTimm, I tried both installing libgsl-dev and installing via conda. Best lead I have on what might be causing the issue is the Rust wrapper rgsl experiences issues with GSL v2, but we have the necessary feature in Cargo.toml already so not sure that is the problem. I will open an issue to provide a thread for investigating the linking problem(s).