Added hashes

added hashes for SteamApp and SteamAchievement
made SteamApp, SteamAchievement hashable

Added __eq__ to allow the items to be properly hashable
Update README.md

Added FAQ entry about the sluggish development this project's been experiencing.
Moved "__eq__" and "__hash__" to main implementation of SteamObject so any two API objects can be compared.
Improved __hash__ in each inheriting class to prevent ID collision cases causing wrong matches.
Merge pull request #10 from smiley/pr/7

Merged PR #7
Added a check for "games_count" and "total_count" when retrieving games so that retrieving them for a user with no games wouldn't fail.
Upped the version for `requests` from 1.2.3 to 2.3.0.
Merge branch 'master' of https://github.com/smiley/steamapi
Added Python 3.4 to supported versions.
Merge branch 'master' into autopopulated-interfaces to bring in the latest fixes.