[Qt-creator] CMake support

[Daniel Teske]

Hi

as some of you noticed, since a few days we have a CMake plugin included.
It is work in progress, currently it doesn't really do much at all.If your 
project can be build on the command line with just cmake && make, then it 
probably builds also inside QtCreator. (E.g. if you need to pass command line 
options to cmake, that doesn't work.) You then can properly even run something 
from inside Qt Creator. [1]

Everything else properly doesn't work at all, yet. E.g. there is no syntax 
highlighting for the CMakeLists.txt files, nor any way to open it from the 
project tree. We list some files in the project tree, that don't belong there, 
and we are properly missing some. We don't pass the compiler output through 
the output parsers, since we don't have an idea which compiler is used. 
We don't listen to changes to the CMakeLists.txt files. 
Some of those are actually easy to fix. 

So there's a lot to be done, before it even works for the basic tasks.

We haven't decided on which date the 1.0 release will be, but the current plan 
is either disable it for the 1.0 release, or add a warning that it is 
considered experimental code, which might not work for you.

If you want to help the code is in the repository, quite small and easy to 
read. If you have any questions, ask here or on irc in the #qt-creator channel 
on freenode.

daniel