--major refactoring due to seriously bad code duplication creeping up.
Will just have a single tiedie (version 2) binary, which will also (optionally)
perform consensus network subsampling generation.
Just one version of linker functions and subnetwork selectors now. Will probably be
converted to OO code later for optimization with concensus drivers later.

Mostly broken at the moment, but that will force a fast rewrite on my part. Also
have to add unit tests and update the regression test for this branch.

-Evan