Update README.md
Update README.md
upgrade google SDK to newer version, update README
upgrade google SDK to newer version, update README
upgrade google SDK to newer version, update README
upgrade google SDK to newer version, update README
bugfix destroyBannerView, add example destroy and show interstitial ad
bugfix destroyBannerView, add example destroy and show interstitial ad
bugfix destroyBannerView, add example destroy and show interstitial ad
add screenshots for iphone/ipad/android
add screenshots for iphone/ipad/android
add screenshots for iphone/ipad/android
add screenshots for iphone/ipad/android
add screenshots for iphone/ipad/android
add screenshots for iphone/ipad/android
bugfix, only handle status bar when ios7 AND banner at top
update README
update README
update README
update README