QmlJS: Adding checks for .ui.qml files

Change-Id: I88eab65e1c1187ffd5a88fb5c9780d0156a17729
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
QmlJS:: Allow qsTr() for .ui.qml files

Change-Id: I8ccae13653bbb010853d99be9136bf364b823c3d
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>