Fixed compatibility with phonegap 2.7.0

- Changed interface 'Phonegap.exec' to 'cordova.exec'
- Use paymentWithProduct instead of paymentWithProductIndentifier
because It was deprecated in iOS 5.0
- Changed interface of requestProductData parameters
- Add prefix in NSLog
Fixed a readme file
Bluetooth Serial Plugin
PowerManagement plugin for windows phone
Merge branch 'upstream/master'
[PowerManagement] update for license and readme
Merge pull request #1149 from Viras-/master

[PowerManagement] WindowsPhone version & readme updates
Surely a mistake?
Merge pull request #1155 from JohnMcLear/patch-1

Surely a mistake?
Added plugin to launch external apps
Added plugin to launch external apps
Added MailComposer plugin
Merge pull request #1157 from sbahal/master

Cordova iOS plugin to launch external apps
Merge pull request #1134 from davidshimjs/master

InAppPurchaseManager compatibility with Phonegap 2.7.0
BluetoothSerial added support for iOS
Merge pull request #1137 from don/BluetoothSerial

Bluetooth Serial Plugin
Add Html5Video Plugin for Android
Merge pull request #1174 from jaeger25/master

Add Html5Video Plugin
Create Readme.md
Added Android PrintPlugin plugin