Fixes: AttributeExtensions with libmaliit
Fixes: AttributeExtensions with libmaliit

There was a leading "/" missing for the attribute extension key.

RevBy: Michael Hasselmann

Full, original commit at 7041dfd3612f53025ae93a55a346a5df73c0f8a7 in maliit-framework

maliit/inputcontext-qt4,maliit/inputcontext-qt4,perencia/inputcontext-qt4