Copy the handling of the gtk-doc in the gnome2.eclass to the mate.eclass. Also added in mate.eclass a DEPEND on both app-util/gtk-doc{-am}.

Also added DEPEND on app-util/gtk-doc{-am} so we do not have to add this to every ebuild. It is needed anyway so make our lives easier.

Remove DEPEND on app-util/gtk-doc{-am}
Remove IUSE "doc"
Allow EAPI 5 in the eclases
Revert "Copy the handling of the gtk-doc in the gnome2.eclass to the mate.eclass. Also added in mate.eclass a DEPEND on both app-util/gtk-doc{-am}."

This reverts commit d94a1a818b3c8cf2bdef23dd5124c0abd7fc7d7a.

Made stupid mistake..
Copy the handling of the gtk-doc in the gnome2.eclass to the mate.eclass.

Also added DEPEND on app-util/gtk-doc{-am} so we do not have to add this to every ebuild.
It is needed anyway so make our lives easier.

Now on to fix the ebuilds.
    Remove DEPEND on app-util/gtk-doc{-am}
    Remove IUSE "doc"
    Update ebuild to use EAPI 5
Remove doc use flag and update to eapi5
Merge branch 'master' of https://github.com/infirit/mate-overlay into gtk-doc
Update to EAPI 5

Bump EPAI to version 5
Remove doc USE flag
Remove DEPEND on gtk-doc{-am}
Merge branch 'master' of https://github.com/infirit/mate-overlay into gtk-doc
Bump EAPI to 5
Update EPAI to 5 and remove depend on gtk-doc/gtk-doc-am.
Merge pull request #4 from infirit/gtk-doc

Gtk doc changes