Fixed link in README to flower demo.
Refactored threshold example and added a simpler one.
Creating new images now creates blank images, not just copies.
Changed style of keywords like 'on'.
Renamed pixel iterator.
Added matrix filter function and example.
Renamed newImage to use a verb.
Fixed some spacing.
Removed log.
Added a sharpening example.
Added a matrix convolution helper and simplified examples.
Regular indent, instead of indenting to punctuation.