Bump minimum cmake requirement
Created by: tammojan
I ran into this error when using CMake 2.8.12.2.
CMake Error: Error in cmake code at
/home/dijkema/opt/DP3/src/CMake/FindPackageHandleStandardArgs.cmake:6:
Parse error. Expected "(", got newline with text "
".
I guess that 3.0 should be recent enough: