SLING-3662 : up/down/left/right navigation keys supported in properties view - plus tab/enter exit cell editor as expected. tab itself doesn't navigate yet atm. entering the type editor opens the drop down (so changing the node type is very quick now) - plus changing to Double now correctly converts.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1602160 13f79535-47bb-0310-9956-ffa450edef68