Fixed git comms to get release info.
Fixed typos.
Move banner to topo/__init__.py and added version/commit info
Changes in Makefile to create dist w/o compiling dependencies (no ./bin).
Note the two Makefile files changes may not be needed.
Tested on gcal. Tested git release info getting >ly and <ly.
Merge branch 'master' of github.com:ioam/topographica

Conflicts:
	topographica