In some cases we'll want to save the data from the stream directly with
no transformation needed. This will allow us to return the raw data
string from the stream
* Add new StringToStringTransformer
* Remove Record from codebase in favor of more generic interface
Godoc removes un-exported fields and puts a line-break in the
documentation when exported fields and un-exported fields aren't grouped
together. Will follow this standard going forward.
Noticed GetRecords error when a Shard's lease expired.
* Added a timeout so we don't hit the rate limit on this type of error.
* Increased the timeout when there are no Records on the stream.
