Fixes #4532: trigger deployment when techniques are imported for the first time
Merge pull request #454 from ncharles/bug_4532/dev/initial_import_should_trigger_deployment

Fixes #4532: trigger deployment when techniques are imported for the first time
merging 2.6 into 2.8
Merging 2.8 into 2.9
Merge branch 'branches/rudder/2.9'