Merge pull request #22 from ericcj/master

saving User object fails because of sessionKey
removed query setters
committing before merge. no real changes. just some spaces
Merge branch 'master' of github.com:adelevie/parse-ruby-client
better handling of relational queries
bump readme version
Version bump to 0.1.10
Regenerate gemspec for version 0.1.10
Merge remote-tracking branch 'adelevie/master'

Conflicts:
	lib/parse/query.rb
	lib/parse/util.rb
fix error handling when parsing response occasionally yields nil