Code missed for old knowledge map json files.
Fix for #1237: allow users to set their own default language.
Fix for #1158: eliminate need for LanguagePack model (but keep the model, for future use)
remove base.html code for setting as default--taken care of implicitly now.
removing admin display of language packs, since they are empty
Localize the reloading of session data, to avoid programming errors.
Merge pull request #1278 from bcipolli/1237

Fix for #1237: allow users to set their own default language.
Partial fix for #1273: avoid errors if no zip/po files exist for a given language.
Merge pull request #1279 from bcipolli/1158

Fix for #1158: eliminate the need for the LanguagePack model
Refresh dubbed video mappings before zipping, and within git-based update
do not include crowdin-cached files in KA Lite zip
Clean up paths & structure across files, to share more, assume less.
Clean up paths & structure across files, to share more, assume less.
this file is a local-only file.
Remove subtitle map from repo.
Make dubbed video map have a graceful fallback.
Add latest dubbed video map to all language packs.
Remove subtitle map from repo.
Make dubbed video map have a graceful fallback.
Merge branch 'paths_sharing' into 1222

Conflicts:
	kalite/i18n/management/commands/update_language_packs.py