v1.2.0

Added

• Add IndexedDBShim to tests (@maxogden)
• Add Level.destroy() (@qs44)
• Add prefix to pass PouchDB tests (@qs44)
• Test Level.destroy() (@calvinmetcalf)

Changed

• Update browser configuration for Testling (@maxogden)
• Pass through open options to idbwrapper (@maxogden)

Fixed

• Don't use indexedDB.webkitGetDatabasesNames() in tests (@maxogden)