updated sentinel submodule
Include `from` doc property in lucene index.

Can't remember why I excluded it to begin with.
user friendly tweaks to kanso.json setting schema
updated sentinel submodule
added note about supporting commas in schedule name setting

Also minor modification to language; using "clear" instead of "silence"
since that is what appears in the UI.
Merge branch 'testing' into develop

Conflicts:
	lib/fulltext.js
	sentinel
Merge branch 'develop' of github.com:medic/kujua-lite into develop