Implemented next:putAll:startingAt: for ExtensibleSequence WriteStream to fix some bugs in the new Stream API setup.
Implemented next:putAll:startingAt: for ExtensibleSequence WriteStream to fix some bugs in the new Stream API setup.

krfkeith/slate-language,krfkeith/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,briantrice/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language