KWSys: Set CMP0003 to NEW
KWSys: Set CMP0003 to NEW

The commit "Enable loose loop constructs in KWSys" set the minimum
required CMake version to 2.4.5.  This regressed the setting of CMP0003,
so we restore it in this commit.

chuckatkins/KWSys,chuckatkins/KWSys,chuckatkins/KWSys,chuckatkins/KWSys