Summary: This adds support for a Conduit method to process Remarkup content in bulk. It also updates the `getEngineContexts` methods to support any missing contexts.
Test Plan: Ran the command and processed a few sets of text.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4046
Differential Revision: https://secure.phabricator.com/D7479
Summary: Converts various callsites from render_tag variants to tag variants.
Test Plan: See inlines.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran
Maniphest Tasks: T2432
Differential Revision: https://secure.phabricator.com/D4689