Merge pull request #258 from settinghead/master

UI Status validation cancel event
Merge pull request #260 from settinghead/master

Hide system message icon when there are no system messages
Subcompany banner controller & templates

- Move all subcompany banner logic to its own controller
- Add "Switch to My Company" link to subcompany banner (fix for
https://github.com/Rise-Vision/common-header/issues/256)
- Break company-related e2e tests into 3 files