add 2x size icon
 fix bugs
 fix bug
Fix iOS
Merge pull request #41 from ivanzhaowy/master

Fix iOS
Update pic
Merge pull request #42 from ivanzhaowy/master

Update pic
Update pic
Merge pull request #43 from ivanzhaowy/master

Update pic
Update ios page build script.
Move ios.html
Bug fix
Merge pull request #44 from ivanzhaowy/master

Update ios page build script.
Bug fix.
bugfix.
Merge pull request #45 from ivanzhaowy/master

Merge
Update ios.html
Merge pull request #46 from ivanzhaowy/master

Update ios.html
 Merge from remote
 fix path