Better defaults for format strings for data labels
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
Currently, the default string for data labels is "%-#6.3g" which gives gibberish for non-floating point data values. We should have the default string change values based on the type of the input array (any user change should keep what the user wants though). Also deserves a "Reset" button to get whatever ParaView thinks the best format string should be.