added "changeViewMode" event; also adds the current `viewMode` to events#1953

Merged

acrobat merged 2 commits intouxsolutions:masterfrom AubreyHewes:add-changeViewMode-event

Jul 27, 2016

Commits on Jul 22, 2016

added "changeViewMode" event; also adds the current viewMode to any triggered events
AubreyHewes
committed

Commits on Jul 25, 2016

fixed multiple firings; was firing within the wrong logic
AubreyHewes
committed