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>
Fix endless loop.

Caused by the fact that the settings wrapper did not support
anything different then native format, we had to trick the wrapper
into using its default QSettings object which in turn uses a
QFile (which roundtrips to the admin server) to write the settings
out (behind the scenes). The blocking appeared only on Linux cause
there we try a native call fcntl(handle, F_SETLKW, &fl) to lock the
file during sync, which blocks endless caused of the missing rights.
The fix is to use the settings wrapper also for ini format, as both
are supported (Ini and Native).

Change-Id: I73131c4adf85ba175ba6af1e18acccc29451b14f
Reviewed-by: Kai Koehne <kai.koehne@digia.com>