QtIFW

Fix tutorial example

- remove translations part
- replace installation dir (root) with home
  in order to properly finish the installer wizard
  with default values
- AllowSpaceInPath is now true by default (ChangeLog updated)

Change-Id: I84e372ac4da05964d90851bf592fc87ee9409e3b
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>