Added check for defined Rails::Railtie
added goods_id and exp_time fields to request xml
Added UTF-8 encoding to Nokogiri Builder
fix block yield in helper
Add language option to request xml
Merge branch 'master' of git://github.com/tacid/liqpay
Merge branch 'master' of git://github.com/esobolev/liqpay

Conflicts:
	lib/liqpay/request.rb