module documentation

Test deprecation and future warnings.
Function test​_qr​_mode​_full​_future​_warning Check mode='full' FutureWarning.
def test_qr_mode_full_future_warning():

Check mode='full' FutureWarning.

In numpy 1.8 the mode options 'full' and 'economic' in linalg.qr were deprecated. The release date will probably be sometime in the summer of 2013.