Add training screenshots
Add training files.
output.txt text changes

save it as a JPEG, PNG or TIFF

Select **Save as ...** to save as a JPEG, PNG or TIFF.
Updating screenshots for collaboration.txt and output.txt for 4.4.6 UI
Add training materials to index (see 6e964bc)
Merge pull request #267 from jburel/develop-262

Develop 262