BUG 14845: Added ability to reset color map.

Added ability to reset color map to XML defaults. The reset is not
naive, i.e. it will preserve the currently set color map data range.

Change-Id: I21f30926e4bb488d8b36fff8b8356c0b003924ce
Fix condition to catch exception case.

Change-Id: I17bbba06d2735ce8ad277ba2d27bf55443246dc1
Merge topic '14845_reset_color_map' into next

4e8d7f84 Fix condition to catch exception case.
79655119 BUG 14845: Added ability to reset color map.