Add new files from Astropy affiliated package template
Update setup and config files with latest version from package-template
Update .travis.yml with the latest version from gammapy (uses wheels)
Add missing gammafit/conftest.py from package-template
Add docs/api to .gitignore
Fix sphinx warning for ElectronOZM docstring
Add missing __all__ to onezone.py
Remove corner import from plot.py (fixes sphinx docs warning)
Remove redundant file docs/gammafit/index.rst (fixes sphinx warning)
Restructure Sphinx docs a bit
Add `intersphinx_mapping` entries to Sphinx configuration file
Add package docstring.

(I might have removed that one accidentally before)
Fix install of dependencies in .travis.yml
Move sherpamod.py to examples folder
Remove h5py from intersphinx ... not needed
Update .travis.yml install instruction for emcee and scipy
Docstring fixes in utils.py
Add docstrings in core.py
Add docstrings in plot.py
Add coveragerc file from Astropy package template