Merge pull request #4 from ktym/master

Fixed critical bugs to run examples and added rest of the examples
Added Toshiaki's examples to the repo.
Prettified comments in the "examples" directory. Added method description to BaseSpace.load_credentials. Fixed filename issue.
Added comments to the model baseclass.
Added description about Python to Ruby porting.
Removed comment about Python implementation specifics that do not apply in Ruby.
Added RDoc comments to API and base class.
Added preliminary comments to all model classes.
Added information on re-generating RDoc documentation.
Merge remote-tracking branch 'joachim/master'

Conflicts:
	examples/0_app_triggering.rb