Added Russian and Turkey currencies

[parhamfh]

According to Russian Rubles and Turkish Lire are now available:

https://developer.paypal.com/docs/classic/api/currency_codes/
https://developer.paypal.com/docs/classic/api/country_codes/

web repo also needs to be updated, so taking care of that in a separate repo (not completely sure if I've found all things which need to be added there), but I am guessing this is all that needs to be done for this repo?

[parhamfh]

@birknilson does countries.py also need to be updated? The COUNTRIES mapping doesn't contain Russia or Turkey for instance.

[birkjernstrom]

Yes, in case they are made available by PayPal. The countries where retrieved from a list PayPal provided. Not sure they support all countries for instance - which is why some might not be available in countries.py. Ping @parhamfh

[parhamfh]

https://developer.paypal.com/docs/classic/api/country_codes/

According to this they both seem to be supported.

In countries.py I see the COUNTRIES map, so I am guessing that Turkey and Russian Federation needs to be added to that since it is a part of the frozenset further down. However, does SUPPORTED_LOCALES (already has Turkish it seems) also need to be updated?

Also, I am curious about ORDER, not quite sure if that is manually formatted or automatically generated, but it seems to contain RU and TR already. What is its purpose?