Load a default-named configuration file if present
Removing utils.file_exists and replacing with os.path.isfile
Adding information to argparse help
Fixing help text
Add non unique slug warnings for translations
Check URL overwrite. Fixes #446.

Check that template-generated files don't overwrite each other. Log a critical
message otherwise, and exit with non-zero status.
Import wordpress pages to pages/ subdir with --dir-page option

When importing from Wordpress, the --dir-page directive (disabled by
default) automatically adds files to the pages/ when they are recognised
as pages, as opposed to posts.
Add `DOCUTILS_SETTINGS` to allow to customize the docutils Publisher.
Clean up and improve <head> of notmyidea theme

- remove useless IE stuff (links to files that do not exist)
- use DEFAULT_LANG for the lang attribute
- move charset at the top
Update test output for improved notmyidea <head>
Remove "Done" after running "make html"

Pelican now provides better user feedback (see #857), so echoing "Done"
after a "make html" run has become redundant.
Add new contributors to THANKS
Add new changelog items and link to Tutorials wiki
Add 3.2 release date to changelog
Prepare for next version
Fixes #708 SUMMARY_MAX_LENGTH=0 should return empty string
Merge pull request #867 from avaris/summary-max-length

Fixes #708 SUMMARY_MAX_LENGTH=0 should return empty string
Add warning to docs re: DELETE_OUTPUT_DIRECTORY
Make tags and cats case insensitive. Fixes #704.

More precisely, group tags or categories without considering the case.
This fixes the bug where two categories with just the case as difference were
considered as distinct, but generate the same file: one overwriting the other.

Thanks to @Avaris for helping with the tests.
Merge pull request #845 from Rogdham/case-insensitive_caterogy_tag

Make tags and cats case insensitive. Fixes #704.