Require CMake 2.8.7
Policy CMP0011 is no longer needed
Set version before other checks
Cleanup cmake files and fix use of FindPackageHandleStandardArgs
Fix yarpbuilder build with YARP_USE_GTK2
Find Atlas quietly
Merge pull request #29 from drdanz/cmake-2.8.7

CMake 2.8.7
Merge branch 'master' into yarp-2.4