Log Message:
Update cairomm to 1.12.0:

1.12.0 (unstable):

* Cairo::RefPtr: Add move constructors and move operator=().
  (Murray Cumming)
* MSVC build fixes.
  (Chun-wei Fan)

1.11.4 (unstable):

* Use (and require) C++11.
  (Murray Cumming)
* Add Script and ScriptSurface.
  (Povilas Kanapickas)
* Context: get_surface_wrapper(): Handle CAIRO_SURFACE_TYPE_SCRIPT,
  returning a ScriptSurface.
  (Povilas Kanapickas)
* Surface: get_device(): Handle CAIRO_SURFACE_TYPE_SCRIPT,
  returning a Script.
  (Povilas Kanapickas)
* Wrap cairo script device and script surface APIs.
  (Povilas Kanapickas)
* FtFontFace: Add get/set/unset_synthesize().
  (Povilas Kanapickas)
* Update MSVC.Net 2010 project files.
  (David Weiß)

1.11.2 (unstable):

* Pattern: Add set_extend() and get_extend().
  (Povilas Kanapickas) Bug #73775
* ScaledFont: Add the missing get_extents() method implementation.
  (Murray Cumming) Bug #53981 (cheshirekow)
* Allow use from Objective-C instead of just allowing building.
  (Anton Bachin) Bug #66328
* Avoid dereferencing empty std::vector<>s.
  (Murray Cumming) Bug #36020 (Robert Kurjata)
* Documentation improvements.
  (Mark Vender)
* Fix linker problems in examples.
  (Murray Cumming)