Fix headings using ing termination
Fix Image-Pixels example using getPrimaryPixels()
Use rubric markup instead of section headings
Fix getImages() signature when specifying project/dataset ids
merge dev_4_4 -D org -I include -E exclude: PR 281 (Review Matlab documentation (see #10389))
merge dev_4_4 -D org -I include -E exclude: PR 334 (Add GH/Jenkins extlinks to the model documentation)