Perceptually improved colormaps

Replaced text labels in the screenshot

Uploaded new rainbow colormap with sawtooth shaped lightness profile. Included new example images and scripts, and deleted a few obsolete scripts. Updated reference links.

Added a new isoluminant colormap that wraps around the full hue range 0 - 2pi twice. Updated reference list with link to new blog post on IsoAZ and IsoAZ colormaps.

Corrected summary and added reference to a blog post by Steve Eddins for IsoAZ colormap

Replaced INTERP1(...,'CUBIC') with INTERP1(...,'PCHIP') as suggested by Jakob Nikolas in the comments. Added a new isoluminant colormap for cyclical (azimuth or phase).

On April 29th I loaded by mistake a previous release instead of the new one. This is the correct release.

Added missing switch statements for 'linearl' and 'linlhot'.
Added error check for minimum number of colors

Added a linear lightness rainbow colormap
Added a linear lightness adjusted heat colormap
Added first line to examples.m as suggested by COlin in the comments

Implemented Colin's first suggestion for examples.m

Added a 100% perceptual version of cube law rainbow and new examples and references.

updated contact email

flipped isoL colormap so red is on the high intensity side
added one more example
minor edits and typos corrected here and there

Added more examples and demonstrations

Added more examples in new file examples1.m
Added one of the reference papers (link disrupted)
Edited H1 line
Added justification paragraph
Modified REFERENCE AND acknowledgements in help
Removed MAC_OS hidden files