- spec_all will run build against all builds in travis.yml, so we just declare rubies there for Travis and can run things for spec_all
Fix option key name, :default_logger to :logger
- simplify rakefile and gemfile
Fix Rakefile when Jeweler is not installed
The LogBuddy::VERSION constant is used by the RDoc task as well, so make sure to require it in top-level, as the Rakefile won't work otherwise.
This should get rid of deprecation warnings for Rails 3+ projects