Ratings label fix (re: Issue #1)
Change +initialize implementation
Add -loadAppsWithBundleIds: implementation
Add documentation for -loadAppsWithBundleIds:
Update podspec version to 1.2.0
added default country code US for case when NSLocale currentLocale returns nil for NSLocaleCountryCode.
country code is now omitted from itunes URL if it is nil
Merge pull request #3 from trici/master

added default country code
Add countryCode check for artists method as well