Dexie v1.3.6-beta.1

Several improvements and bugfixes:

• Big optimization of WriteableCollection.delete() (this time it DOESN'T crash IE or Edge!)
• Support for bulkPut() and bulkDelete().
• New methods on Collection: Collection.raw() and Collection.clone()
• Default console.warn() when db upgrade or deletion was blocked (overridable)
• Rigorous unit testing of CRUD hook api. Found and corrected several bugs.
• Updated typings with added methods.

Production release will come within couple of days...