Merge pull request #7 from weex/master

0.8.4.1 gitian sigs from weex
0.8.4.1 gitian sigs from pooler
Merge pull request #8 from pooler/master

0.8.4.1 gitian sigs from pooler
0.8.4.1 gitian sigs from thrasher
Merge pull request #9 from thrasher-/master

0.8.4.1 gitian sigs from thrasher
0.8.5.1 gitian sigs from thrasher
Merge pull request #10 from thrasher-/master

0.8.5.1 gitian sigs from thrasher
0.8.5.1 gitian sigs from wtogami