Because these are useful with C++11.

We already used _IMPLEMENTS_INTERFACE() but forgot to do this.
The move constructor generated by the recent gmmproc caused a
compiler error because of this, which is nice.

Because the base Actor already does this.

We already used _IMPLEMENTS_INTERFACE() but forgot to do this.
The move constructor generated by the recent gmmproc caused a
compiler error because of this, which is nice.

They are too strange.

This reverts commit cfbad980.

All these commits for cluttermm-2.0, to use clutter-2.0, are now in the
clutterm-2.0 branch, because clutter-2.0 will probably never happen:
https://blogs.gnome.org/clutter/2015/01/04/changes-in-the-layout-of-the-git-repository/

This reverts commit 80361abd.

This reverts commit 9cd39e30.

This reverts commit 15452ea5.

This reverts commit ff1d1498.

This reverts commit 2e414ce7.

This reverts commit b2014528.

This reverts commit 77d6a846.

This reverts commit 0f585cac.

This reverts commit cd6b56bd.

This reverts commit 21e06458.

This reverts commit 143d2a4d.

This reverts commit 4566aab3.

This reverts commit 09510352.

This reverts commit 66905902.

This was trying to add two RefPtrs together. The compiler seems to
catch this stupidity now that RefPtr's operator bool is explicit,
as is possible in C++11.

This was my fault:
https://git.gnome.org/browse/cluttermm/commit/examples/test-actors.cc?h=cluttermm-1-24&id=c6540163

Because of hard-coded checks in the underlying ClutterActor.
See https://bugzilla.gnome.org/show_bug.cgi?id=763073#c7

This reverts commit 0bcc3a8c.

This reverts commit 81c3b1d0.

Because it doesn't seem to be necessary or useful.

See bug #761847

Ian Martin authored Feb 15, 2016 and Murray Cumming committed Feb 24, 2016

Also, set_from() and set_to methods() now set the value passed in properly.

Ian Martin authored Feb 11, 2016 and Murray Cumming committed Feb 24, 2016

Because the compiler is unable to differentiate Glib::Bytes& from guint8* datasets.
Prevents segfault on loading an image.