Newer Genomedata versions should error and warn users during install if 'forked-path' is installed

[EricR86]

Original report (archived issue) by Eric Roberts (Bitbucket: ericr86, GitHub: ericr86).

---

Currently the current path.py and the older forked-path python modules are both called path. There is a naming conflict if they are both installed on the system and will cause issues.

It's been suggested that on installation (through setup.py) that a check for forked-path is made, and if found, to abandon the installation and inform the user to remove the forked-path first.

See Issue #50