QtIFW

Fix QTIFW-52.

Do not set the application name and version during init, as this
would set the packages info to modified. Thus if the packages info
goes out of scope would trigger an components xml write. We now
set the name and version when we start installing, or if is empty.

Change-Id: I8503bab55f7d614bc859f3a3773eb4a0f7816d48
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>