Merge "Apps on SD card project. Refactored recommendAppInstallLocation(..)...

Merge "Apps on SD card project. Refactored recommendAppInstallLocation(..) method in PackageManager by making it an instance method. Since PackageManager has only abstarct instance methods, moved implementation to ApplicationContext.ApplicationPackageManager class, in line with the rest of the method implementations. Tah way, chage is consistent with best coding practices. Also MockPackageManager received the additional method."