Update to handle Rails caching mechanisms
Add a logger. Update APIOperatorCached. Uses some Ruby 1.9 features
can't register fake credit cards anymore and not going to put my real card details on github so getting rid of the integration tests
replaced deprecated RAILS_* constants with Rails.*
Merge branch 'master' of github.com:filip7d/7digital
updated version number
an attempt to cache deserialized api response (instead of XML)
fixed debug info variables
moved artist digestor to nokogiri
moved release digestor to nokogiri
moved track digestor to nokogiri
converted remaining digestors to nokogiri
more "refactoring" - getting rid of last peachy leftovers
changed from Float to BigDecimal for prices
added artist popularity
updated git ignore list
Merge remote-tracking branch 'curtis/master' into no_peachy

Conflicts:
	lib/sevendigital/api_operator_cached.rb
	lib/sevendigital/management/track_manager.rb
	lib/sevendigital/model/release.rb
added user/details endpoint support
user type is only optional
bumped version number
Merge branch 'no_peachy' of github.com:filip7d/7digital into no_peachy