Add ATK_ROLE_STATIC and clarify ATK_ROLE_TEXT
Add ATK_ROLE_STATIC and clarify ATK_ROLE_TEXT

https://bugzilla.gnome.org/show_bug.cgi?id=739981

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