HACK: replace itemselector with text field for now while we debug other extjs 4.2.3 upgrade problems
Revert "Set icon in master/detail Panel via boxready listener"

This reverts commit 2b8bd121aa8d93eda87ab3a708cf6363ef05c073.
Revert "Remove icon set in masterdetail Panel, seems uneeded and also causes javascript exceptions"

This reverts commit 4797738a3dc6bb970d2d16d4507ac5e07bcaaffb.