Use Alloy's builtin popIn animation to open the window
Fix styling of the loading container on Android and fix the size of the close button to not overlay text inside the webView
Fix the views on iOS 7 to not overlay the status bar
Enlarges the clickable area of the close button
Merge pull request #299 from martintietz/master

Improve social.js UI to work on iOS 7 and on Android (Ti 3.2.0)