add unique id to each result of FindTask to correctly highlight/zoom when two results have same value field
added additional logic regarding spatial reference and extent size for more flexibility/accuracy when zooming to point features
Fixes #111
Merge pull request #114 from DavidSpriggs/bug/find-widget-highlight-unique-features

add unique id to each result / fine tune spatial reference
Merge branch 'master' into feature/FloatingWidgets