More descriptive setup.py script.
Uniform shebang and encoding declaration.
PEP8.

Full conformance with the latest version of flake8.
Merge branch 'master' of github.com:krischer/TauPy

Conflicts:
	taupy/SlownessModel.py
	taupy/TauModelLoader.py
	taupy/TauP_Create.py
	taupy/TauP_Time.py
	taupy/VelocityModel.py