pep8 fixes
Added .travis.yml file
Fixed pep8 installation
Added gdal for geospatial data source introspection
Added travis badge
Do not overwrite save method, let's use the signal
Passed pylint
Switched from signing to login to make django test suite happy. See https://code.djangoproject.com/ticket/20114
Added python-safe dependency from pypi, no need for workaround anymore
Removed inasafe workaround from README
Added gdal-bin installation instructions to the README
Fix login link on template