Facet bug, query bug, loadstartingwith case bug

Raven changes:

TEST: creating a facet hides other errors.

TEST: facet doesn’t work with datetimes and the advanced api

TEST: authorization doesn't work with transformers

TEST/Patch: allowing for expressions when creating facet ranges with advanced api

TEST: || in where blows chunks.

TEST: When we specify our own Id with mixed case, we can't find it with all lowercase prefix request nor with the matching mixed-case request. LoadStartingWith is partially case-sensitive.. And Load is not?