support for updating entities etc.

src/entities/note_revision.js

@@ -3,6 +3,8 @@
 const Entity = require('./entity');
 
 class NoteRevision extends Entity {
+    static get tableName() { return "note_revisions"; }
+
     async getNote() {
         return this.repository.getEntity("SELECT * FROM notes WHERE noteId = ?", [this.noteId]);
     }