Added debug flag.
Removes warning from manpath.

* The man path is now not touched when there are no man pages
  available.
* MANPATH is unset prior to editing the man path which keeps manpath
  from issuing the warning.
Merge branch 'master' into v0.2dev

Conflicts:
	api_client.py
Fixed link to GitHub page.
Merge branch 'master' into v0.2dev