Deprecate more apis related to functionality replaced by the introduc…

…tion of MirRenderSurface.

Approved by Brandon Schaefer, mir-ci-bot.

Releasing 0.26.0+17.04.20170126.3-0ubuntu1

mirclient: Support setting the output scale factor

client: fix error message and failure RC returned to drivers when con…

…figuring swapinterval twice.

fixes: LP: #1659298.

Approved by mir-ci-bot, Cemil Azizoglu.

Releasing 0.25.0+17.04.20161203-0ubuntu1

Remove dead code: *BufferAllocator::reconstruct_from()

And everything still works :).

Approved by Alan Griffiths, mir-ci-bot, Kevin DuBois.

Releasing 0.24.1+16.10.20160928-0ubuntu1

Releasing 0.24.0+16.10.20160815.3-0ubuntu1

note fix in changelog

Releasing 0.23.5+16.10.20160729-0ubuntu1