701bf8317f
Summary: Provide three Phriction methods for programmatic access to Phriction: - phriction.info: get information about a document - phriction.history: get change history for a document - phriction.edit: create or update a document I moved all the editing/creation logic into a new PhrictionDocumentEditor to share code between the Conduit and Web edit pathways. Test Plan: Got info and history via conduit. Edited and created new pages via conduit and web. Reviewers: hsb, jungejason, tuomaspelkonen, aran, hunterbridges Reviewed By: hunterbridges CC: skrul, aran, hunterbridges Differential Revision: 866