Merge pull request #7 from soumith/master

lots of changes
Verbose parameter.
only show scroll bar when necessary
fixed display of 3 dimensional 1 channel images
Merge pull request #14 from soumith/master

removing https
Merge pull request #15 from soumith/master

reliable file watching using chokidar
Merge pull request #12 from andykitchen/image-fix

fixed display of 3 dimensional 1 channel images
Merge pull request #11 from andykitchen/scroll-fix

only show scroll bar when necessary