Merge #69, #84, and #133#20

Merged

McNeight merged 8 commits intoMcNeight:masterfrom

icsharpcode:master

Aug 15, 2016

Commits on Feb 7, 2015

Fixed objectdisposedexception
Ezghoul
committed

Commits on Jul 15, 2015

since the stream is not seek-able, access to Length should return exception
kkguo
committed

Commits on Aug 14, 2016