roles: create new AT-SPI2 roles for ARIA roles (and one for rating)
roles: create new AT-SPI2 roles for ARIA roles (and one for rating)

https://bugzilla.gnome.org/show_bug.cgi?id=712608

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