Make the dependency on stdbuf optional for everything but `notify`

php7 is no longer an allowed failure

Merge pull request icewind1991#46 from icewind1991/stream-stat

use regular stat instead of fstat

only set minumum required streams version

Merge pull request icewind1991#44 from StephanWeinhold/patch-1

Fixed wrong variable-name.

Merge pull request icewind1991#41 from icewind1991/invalid-handle

Improve error handling in NativeShare->get

also block \r

improve support for workgroups/domains

fix php5.3 compat

add missing connect