QtIFW

Fix use --startclient arguments

So far the arguments to --startclient have been ignored.

Change-Id: Ib76b061381a9320e6e4e9e2e970132c2f614aca7
GPush-Base: 92da4093e32040cb7cd7ed5587de78262d825e65
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@theqtcompany.com>