Updated to mate 1.5

Hi, I added most of the packages listed on http://pub.mate-desktop.org/releases/1.5/ and updated the dependencies where needed. We may want to mask them until all the bugs are sorted.

It builds fine (exceptions below) and initial testing is looking ok.

New ebuilds:
mate-calc
mate-character-map (replaced gucharmap)
mate-sensors-applet

Missing are the mate-filemanager-* packages which I will add later and send you a pull request when done.

mate-terminal-1.5 fails installing documentation, this is not keyworded but is in the tree.

Let me know if you need any changes done or see any big issues.

I have a list of current open issues on https://github.com/infirit/mate-overlay/issues.

Greets
~infirit
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Update: gtk-doc handling canges in the following commits. See comment later for more details.

Enable EAPI 5: fd38cdeb1ef669354d44b34b0c609a2cd4074371
Add DEPEND and copy the logic from gnome2.eclass: 8b8f66e715a39a876e4105d38955e5fe7dbee61b