Add docstring for add_node function
Set flake8 flag in setup.cfg.
Handbook: Talk about post type-specific CSS class names.
Merge pull request #998 from getnikola/document-add_node

Add docstring for add_node function
Fix #986 for galleries
well, plan to ;-)
make the url replacer a real method and not an internal function
moved generic_rss_renderer unchanged into the Nikola class
Add some detail to a couple of location related comments in conf.py.
Also update Travis CI config.
Merge pull request #1002 from ramiro/location-notes-in-conf.py

Add some detail to a couple of location related comments in conf.py.
Merge pull request #1001 from ramiro/clarify-classes-are-CSS

Handbook: Talk about post type-specific CSS class names.
Merge pull request #999 from ramiro/flake8-config

Set flake8 flag in setup.cfg.
Fix tests
Fix #952 (tests are broken now)
Fix #1004
Fix tests
flake8
Merge pull request #1005 from getnikola/hide-sourcelink-is-backwards

Fix #1004
Set flake8 flag in setup.cfg.