Updated Check Scanner after UI feedback
* Added GetAttributeValues on IHasAttributes and all implementations.
* Added GetAttributeValues on RockPage and RockBlock.
* Added btn-checked-in to checkin-core.less used when person checks in during check-in session.
* Added MobileEntry check-in block.
* Remove GetHostByAddress usage from KioskCache's GetKiosk method.
correct merge bug that allowed duplicate using statements.
Merge branch 'upstream/develop'