fixed problem with SocketUxdNb if directory not exist
fixed test close
Added umask arg and attribute to SocketUxdNb so that can set permissions bits on the Unix Domain Socket file
bump version
Renamed metadata to metas to be more consistent as it is a list or dict
Added preloads to skedder and builder for one way preloading of data Store
update version
Minor fixes
bump version
Fixed race condition on StoreTimer if skedder has not yet run to advance stamp  in postinitio
bump version
Now reraises socket errors on send of SockeUdpNb and SocketUxdNb
bump version
Merge remote-tracking branch 'upstream/master'

Conflicts:
	ioflo/base/aiding.py