Some commits

[Florian Lohoff]

Hi,
just to let you know - there is a build fix in the getstream repository
and some fixes for "correctly" implemented Frontends.

I came away with polling the frontend with read available but there are
frontends which correctly implement exceptions.

This should be fixed now - Please test.

Flo
-- 
Florian Lohoff                                                 f at zz.de
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