R1:912e414013fa

Update Conduit Maniphest CRUD API(s) to not accept crud

Summary: see T1241, T1242, T1244 for some examples of crud getting saved

Test Plan: threw some crud in my conduit console and got reasonable errors back

Reviewers: mikaaay, epriestley

Reviewed By: epriestley

CC: aran, Koolvin

Maniphest Tasks: T1241, T1242, T1244

Differential Revision: https://secure.phabricator.com/D2487