celix cannot be build w/ cmake 3.3.1

[Bjoern Petri]

Hi everyone,

It seems that celix cannot be build using cmake 3.3.1 (which has been 
rolled out with the latest update of fedora 22). Trying to build it ends 
with an message saying "Error: could not load cache". I'll look into 
this later. For now I'd suggest staying with cmake < 3.3.1.

Regards,
  Bjoern