Fix Qt5.3 doc & examples & src package configurations

Include doc & examples components in offline installers.
Also put doc & examples & src into same online repository.

Change-Id: Icd467c8d6b09c3ca6004f03e389409d1422f4a19
Reviewed-by: Samuli Piippo <samuli.piippo@digia.com>
Reviewed-by: Antti Kokko <antti.kokko@digia.com>