Added bulkAdd() to typings.
Added bulkAdd() to typings.

dfahlander/Dexie.js,chrahunt/Dexie.js,jimmywarting/Dexie.js,dfahlander/Dexie.js,chrahunt/Dexie.js,jimmywarting/Dexie.js,jimmywarting/Dexie.js,dfahlander/Dexie.js,dfahlander/Dexie.js,chrahunt/Dexie.js,chrahunt/Dexie.js,jimmywarting/Dexie.js