tr()-Fixes in QNX wizards.

Avoid duplication, trailing blanks and concatenation of translated
pieces where possible.

Change-Id: I462ef7b66fb0e61e57db9d6112f9f4632dbb9c0b
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
FlatModel: Sort file nodes according to displaname first

So far the filename and displayname was the same for all filenodes. That
changes with the ResourceNodes, so adjust the flatmodel.

Task-number: QTCREATORBUG-11590

Change-Id: Id5a7ecda8963b64a6ebccc589b38f428366da3fd
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>