Merge pull request #691 from annando/master

OStatus autocompletion improved
uimport: set contacts 'avatar-date' to zero. should fix issue #692
Merge pull request #693 from fabrixxm/moveme

uimport: set contacts 'avatar-date' to zero
don't try to parse empty xml with simplepie, throws conversion warning
Merge https://github.com/friendica/friendica into pull