Fixed error in spec
Made gaussian_blur return a rectangle that defines which part of the image
has valid outputs.
minor cleanup
merged
Changed extract_image_chips() slightly so that it can take non-resizable images
like cv_image as input.
updated docs
Added skeleton()
Slightly improved skeleton output
updated docs
added skeleton unit test
updated docs
Added license statements and also converted line endings to unix format
updated docs
Fixed finding of boost python
Removed quoting from path strings
Minor change to avoid warnings from newer cmake
Fixed policy setting so it works on old cmakes
Added tag v18.12 for changeset 4e3941b13ca8
Created release v18.12