Changed the names of boolean properties to a "is_???" format to indicate they contain a boolean value.
Added two Enums used for mapping SteamUser states (Online, Offline, etc.) and profile visibility settings (Friends-only, Friends of Friends, etc.).
API calls can now have list-based arguments. They will be converted to a request-compliant list (comma-separated) before submitting the query.
NOTE: This does NOT mean chunk-handling for extra-large lists is now done automatically. You still need to account for request size and make sure you don't try to send a packet that's too big.
Also tidied up & made code more PEP-compliant.
Implemented almost every remaining property, and fixed some redundant caching.
Merge branch 'master' of https://github.com/smiley/steamapi