Remove focuslocker in blocktype configure. (Bug 1334501)

also add the function keytabbinginadialog() to make sure moving by TAB
keys will only within the pop-up dialog

Change-Id: Ic220202052a6665476973fff73312cfb9e603051
Merge "Remove focuslocker in blocktype configure. (Bug 1334501)" into 1.9_STABLE