Added stencil functions.

Also reformatted some of the existing qdocs to use bulleted lists for enumeration options.

Change-Id: Icf36f0c6918f5d65939f4b146ee8f3537250769e
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Reviewed-by: Pasi Keränen <pasi.keranen@digia.com>