Run tests even if IRO is down
Fix syntax error
Small typo ".ipnb" -> ".ipynb"

Just a small typo in a README file.
Merge pull request #1270 from bartvm/download

Run tests even if IRO server is down
Merge pull request #1273 from MarCnu/tutorial-readme

Small typo ".ipnb" -> ".ipynb"
Add allow_input_downcast=True

Add allow_input_downcast=True to the script. It is useful as GPU uses float32 and CSV floats are not properly typed and Python assumes float64.