improve new version emails
FIX: don't try to create category description topic if it already exists
BUGFIX: only wait for jobs of the current_site when backing up
FEATURE: minimize duration of read-only mode when backing up
French Translation

Big update translation from Transifex

Changelog:
- topic = sujet
- Uniformisation des termes
Merge pull request #2124 from Onaldanm/french-translation

French Translation
BUGFIX: revision numbers were unbound in revision history UI
Support for a daily job at a certain hour. Convert backup job to run at
3am instead of randomly during the day.
remove login-specific info
Update INSTALL-digital-ocean.md
omit needless words from welcome email header
improve the admin quick start guide a bit more
fix bad link
Mark failing spec as pending for Robin to investigate
FIX: ORDER BY for new topics within current category was second in list, needs to be first
clarify on login config
Mostly working importer for typepad blogs
add link to GitHub source for Admin Quick Start
put top before categories
improve invite friends email cues