removed cruft from gitignore, we are using COUCH_URL env var.
refactored config handling WIP #266

Moved from managing sentinel-configuration and sentinel-translations to
having a default.js with all default settings and then extend that
object from app_settings.json data from kujua-lite.
Merge branch 'develop' into feature/266

Conflicts:
	sentinel/.gitignore
minor error message tweak.
added a few sentinel/scheduler options to settings_schema. #266
Merge branch 'develop' into feature/266
Merge branch 'develop' into feature/266
updated changes filter to listen to kujua-lite ddoc changes.

since all settings are being migrated to `app_settings` on ddoc.
refactored weekly reminders config/processing #266

still only supporting weekly reminders at the moment, will add monthly
support soon.
Merge branch 'develop' into feature/266
added ne and es to default app_settings translation schema.
fixed bug in csv export list function to properly translate column labels

try to translate label first and use titleize as last resort
Merge branch 'develop' of github.com:medic/kujua-lite into develop