Initial draft for m2 version history
Adding real enums comment
fixing duplicated zoom buttons
fixing roi plugin to work when embedding viewer
updating roi plugin to support dynamic name
preparing tiles before image loads
adding missed libraries
fixing naming issues for scalebar and roi plugins
Merge remote-tracking branch 'origin/develop'

Conflicts fixed:
	history.txt
Adding JM's suggestions
Merge remote-tracking branch 'origin/develop' into viewer_fixes
Adding list of changed fields
Merge pull request #3222 from hflynn/m2-history

Initial draft for m2 version history
Adding removal of deprecated methods to history
Also mention Gateway and methods
Merge pull request #3252 from joshmoore/history-update

History update
Merge pull request #3217 from aleksandra-tarkowska/viewer_fixes

Viewer fixes