Remove ascii crab_mwl files (are now in one FITS file)
Add gammapy/datasets/data/tev_catalogs/README.rst
Add gammapy/datasets/data/tev_catalogs/tevcat.fits.gz
Add load_tevcat function
Merge pull request #194 from cdeil/issue-194

Bundle TeVCat in gammapy.datasets
Don't try to pip-install scipy>=0.14 on RTD
Update ah_bootstrap.py from astropy_helpers/ah_bootstrap.py
Merge pull request #209 from cdeil/ah-bootstrap-update

Update ah_bootstrap.py from astropy_helpers/ah_bootstrap.py
Restructured containment measure
Added measure curve of growth function.
Added diffuse emission model
Added post function call
Restructred image measure functions and added tests