Add local_settings_secrets.py to .gitignore
Don't make an additional embedded query in deleting sync sessions.

Especially as this breaks MySQL.
Don't have a maximum number of syncsession records by default.
Merge pull request #142 from jamalex/fix_syncing

Fixes to deleting older sync sessions
Use consistent idioms, remove unused code.
When not on a zone, show the local device only.
Check local device's zone (to avoid issues when Zones exist but DeviceZone does not).
Merge pull request #146 from bcipolli/IDOC-robust

Make control panel more robust for imperfect Device/DeviceZone/Zone setup
Solving querytests issue.
Merge pull request #147 from bcipolli/django1.5

Pull in ka-lite:develop, including Django 1.5 changes
Merge branch 'release-0.12.0' of github.com:fle-internal/ka-lite-central into develop
Fix issue with concatenating and displaying lazy translations from API
Fix for #2008: ALLOWED_HOSTS not set.
Fix for closed forms: missing KA-LITE-MOD to Django re-applied.
Basic code for doing deletion stubs locally.  Will not propagate remotely.
Remove need for add_syncing_models
Introduce (debug) settings to allow deletions and viewing of deleted objects.
Introduce all_objects manager, which will always return deleted (and not-deleted) objects.
Work-around for validation issue on save, where deleted foreign keys can't be found (they're hidden!)
Don't update userlog info by default--otherwise, programmatic Django save-related stuff fails (or becomes really hard to do generically).