C++: Whitespace fixes in parser

Change-Id: I409699225b5f42db7ecb6c2dc8d150c1a66ee23c
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
BaseFileWizard: Get rid of applyExtensionPageShortTitle(...)

That method was used to set a title in the progress view of the wizard
that is different from the page title. That is used exactly once and
there it adds more confusion than it helps. So get rid of the whole
thing.

Consistently set the "shortTitle" property instead for all wizards
that want to have a separate short title.

Change-Id: Ia4881e9c00891058629491f9e9de4ac421c59727
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
CustomWizardPage: Set page title in constructor

That avoids having to do it whenever the page is created.

Change-Id: Ie58288a66af79301295d74c3c9f892dc20a832af
Reviewed-by: Orgad Shaneh <orgads@gmail.com>