mako to be more specific about missing symbols when generating config.py for an import plugin
fixing a comment
don't fail for empty bundles, create empty file instead
Merge branch 'master' of github.com:getnikola/nikola
flake8
keep tag case but error out when they would collide excepto for casing
exit with error code if tags collide
Merge pull request #766 from getnikola/cased-tags

keep tag case but error out when they would collide except for casing
Merge pull request #763 from ccanepa/mako

better mako diagnostic when missing a symbol (when importing)
Fix #767
removed debug print
fix test