doc: Updated Qt D-Bus Examples.

-transferred group page from qtdoc repository
-added description in example pages
-set the example documentation to use the standard Qt thumbnail
-added an entry in the help index for the example page

Change-Id: I9d5747bc329b5ecc15acd2eb3139696931166c6f
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Remove the need for the dot in OS X/iOS bundle prefix

This patch removes the need for the user to put a dot at the end of the
bundle prefix which makes it's use more consistent and intuitive.

The prefix is based on what Xcode calls the "Company Identifier",
basically "com.digia" plus the product name. Changing that to
"com.digia.prefix-" and the product name to "Foo" results in a bundle
identifier of "com.digia.prefix-.Foo" which is in line with Xcode.

Change-Id: I9b62fc4dee1df51b523ce890a8896ea58ea2c62d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Fix Null pointer dereferencing in an error handler

identified by static analysis from
http://www.viva64.com/en/b/0251/

Change-Id: I0042336d9598415b978bf9819e74639685c627b5
Reviewed-by: Martin Smith <martin.smith@digia.com>
Move native subwidgets in QWidget::scroll().

Task-number: QTBUG-38999
Change-Id: Ie22dcf61895bbfc575eaae4d1929516a8749de39
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Windows: Fix another crash when creating QRawFont from invalid data

The sanity check added in d16508a285a5423ae9a5034e969801bce74ffb98
didn't actually catch the case where the invalid data is large
enough to contain the offset table and table directory. Added sanity
checks to all the code that accesses the font data now, so this
should fix crashes with partial data as well as invalid data.

Task-number: QTBUG-37190
Change-Id: Ie43f10d8cf0b09007783b9b1c4d91bfed8c6b0f0
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>