Syntax not highlighted in CMakeLists.txt files

[Wiorka]

When I open any CMakeLists.txt file, the syntax looks like a plain text.
- I have x-cmake.xml in /usr/share/mime/text, automatically generated and with correct patterns
- I have a gtksourceview language spec for cmake
- When I press F9, the file is listed correctly as 'Cmake' type
- When I rename a file to anything with .cmake extension, syntax highlighting starts working
- CMakeLists.txt are correctly highlighted in gedit, which also uses gtksourceview, AFAIK

I'm using scribes version 0.4-dev-build1052 from the Ubuntu ppa.

Scribes looks very promising so far, but since I work mostly with CMakeLists these days, I couldn't try it out as much as I'd like :)