DeleteLinkSegments
Unit test drawssff part 1
deleteLinkSegments
LinkService Improvment

more to do
Merge branch 'master' into Improving-Link-Service
LinkService improved
LinkService part 2
Merge branch 'master' into Improving-Link-Service

Conflicts:
	app/scripts/services/HistoryService.js
isolated scope for spectro
spectro isolated scope + unit tests
multiple unit tests & corretions
selectSegmentsInSelection->selectEventsInSelection
rename events and segments to items in viewState
Merge branch 'Improving-Link-Service'