update README.md
Merge pull request #3 from zhangao0086/1.0.0

update README.md
Fixed bug that could sometimes cause image to appear blank.
Merge pull request #4 from zhangao0086/1.0.1

Fixed bug that could sometimes cause image to appear blank.
update README.md
Merge pull request #5 from zhangao0086/1.0.1

update README.md
replaced scrollRectToVisible with setContentOffset
1.0.2
Merge pull request #6 from zhangao0086/1.0.2

1.0.2
Fixed crash if no network is available.
Merge pull request #7 from zhangao0086/1.0.3

Fixed crash if no network is available.
Added landscape supports.
Merge remote-tracking branch 'origin/1.0.3' into 1.0.4
Release 1.0.4
Merge pull request #8 from zhangao0086/1.0.4

Added landscape supports. 
Release 1.0.4