IndexedDBCache will perform much better when it buffers bulk writes to IndexedDB. To enable buffered writes, configure IndexedDBSource or IndexedDBCache with { defaultTransformOptions: { useBuffer: true } }. The only known transforms which are not fully handled by buffered writes are cascading (> 1 level of) dependent deletes. (To hide this warning set Orbit.debug = false or set the useBuffer default explicitly to true or false.)
Adds the following warning in debug mode:
Closes #798