PROPOSAL: Use Cmake as the build system for Samba

[tridge at samba.org]

Hi Simo,

 > As you say it is nothing that we haven't done or keep doing, but
 > certainly if I should judge on this criteria I'd definitely choose CMake
 > over python any day.

It is not cmake or python. It is cmake _and_ python. By using cmake we
don't lose the need for python in samba4. 

Having a dependence on one external tool doesn't justify adding
another. The point of using a python based build tool is that it adds
no additional pain.

Cheers, Tridge