Add a little bit of missing API documentation.
Add a little bit of missing API documentation.

svn path=/trunk/kdesupport/qca/; revision=679508

KDE/qca,Esf-Software/qca,sladage/qca,oktavarium/qca,Bjoe/qca,highfidelity/qca,oktavarium/qca,JoshuaKolden/qca,Bjoe/qca,karolherbst/qca,Esf-Software/qca,highfidelity/qca,karolherbst/qca,karolherbst/qca,KDE/qca,highfidelity/qca,oktavarium/qca,Bjoe/qca,karolherbst/qca,Esf-Software/qca,Esf-Software/qca,highfidelity/qca,sladage/qca,KDE/qca,Bjoe/qca,oktavarium/qca,sladage/qca,JoshuaKolden/qca,JoshuaKolden/qca,JoshuaKolden/qca,KDE/qca,sladage/qca