Added atkmisc.h to atk.h.
Added atkmisc.h to atk.h.

svn path=/trunk/; revision=1133

GNOME/at-spi2-core,Distrotech/atk,collects/atk,Distrotech/atk,GNOME/at-spi2-core,zsx/atk,collects/atk,zsx/atk,GNOME/at-spi2-core,Distrotech/atk