Redesign of the figures in the neighbourhood section of the LMNN notebook
Other minor updates to the notebook as well
fix various warnings
fix further warnings
fix further warnings and newly introduced error
Merge pull request #1702 from iglesias/develop

Redesign of the figures in the neighbourhood section of the LMNN notebook
Fix silly mistake in LMNN notebook
Set max_iter before training, not after...
Merge pull request #1704 from iglesias/develop

Fix silly mistake in LMNN notebook