Updated images for managing-data.txt to show orphaned images
Update image in scripts.txt
Update image in viewing-data.txt
Updated 3 images in getting-started.txt to show orphaned images
Address various Matlab documentation issues raised by Simon

- Fix various typos in the documentation page
- Set default thumbnail width/height to 48 pixels
- Do not expose getImages(s, 'project'/'dataset', []) - not working in 4.4.7
- getObjectsXXXAnnotations(s, ids) does not support loaded objects yet
merge dev_4_4 -D org -I include -E exclude: PR 346 (Training update april 13 1)
merge dev_4_4 -D org -I include -E exclude: PR 348 (Address various Matlab documentation issues raised by Simon)