Set the country code for release notes

[kayzee]

I found that my device's International settings were not set to my actual country. I'm in Canada, but it was set to US (Not sure if US is the default?). Problem arises because my app is only available in Canada, so there is no iTunes search API results for my app in the US.

A suggestion to fix this might be:

1. Look up the user's NSLocaleCountryCode and try to grab the release notes.
2. If no notes could be found, then use the default Country code set by the dev through a property and search again.

If I get around it to adding this before you do (if you even choose to), I will submit a pull request.