* use percent value instead of a factor with up/down scaling (more intuitive)
 * added separate scaling along a specific axis (proportional or not)
increased value ranges of input controls up to 2000 (e.g. 2 meters or 166 feet)


git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@283 bbaffbd6-741e-11dd-a85d-61de82d9cad9