Fix: condition of allow triaina by domain
Implement triaina system channel

 - system.dialog.configm: confirm with UIAlertView
 - system.net.webview.open: open web page with internal webview (not Safari)
Fix: Triaina is initialized each webViewDidFinishLoad

 Because session key is not refreshed by browser back
Use NSJSONSerialization instead of SBJSON
Merge pull request #14 from kanekoa/feature/improve-ios-library

Improve iOS Library