Some pycodestyle (PEP8) fixes

See merge request !746

Tristan Van Berkom authored Aug 28, 2018 and Tristan Van Berkom committed Aug 29, 2018

This adds a step to the docs generation Makefile to generate
release.svg and snapshot.svg badges, modelled after the gitlab
badges.

This also adds the generated badges directory in docs to .gitignore

Tristan Van Berkom authored Aug 28, 2018 and Tristan Van Berkom committed Aug 29, 2018

This is a part of #528

Tristan Van Berkom authored Aug 28, 2018 and Tristan Van Berkom committed Aug 29, 2018

This is a part of #528

Release badges

See merge request !742

Explicitly check that project.conf contains a name. This resolves
the issue of the provenance check from _yaml.py incorrectly reporting
the offending file as the default_config_node projectconfig.yaml
when no name key exists in the pre_config_node dict.