Changes to collaboration.txt for 4.4.8
Update 6 image for collaboration.txt for 4.4.8
Update 4 images for getting-started.txt for 4.4.8
Updating 3 images for imagej.txt for 4.4.8
Updtae text and 2 images for importing-data.txt for 4.4.8
Updating 4 images for managing.txt for 4.4.8
Updating 1 image for each of output.txt, scripts.txt and viewing-data.txt for 4.4.8
Update text and 1 image for web-client.txt for 4.4.8
Merge pull request #380 from gusferguson/training_4_4_8_update_june_3

Training 4 4 8 update june 3