GM -colors, -map, and -monochrome changes

For the next GM release, the 'mogrify' and 'convert' commands will 
respond immediately to the occurance of a -colors, -map, or 
-monochrome option on the command line.  In previous releases these 
were treated as file saving options and were invoked after all prior 
image processing operations had been performed.  Due to the change, 
the results may be different if a script requests additional image 
processing after a -colors, -map, or -monochrome option on the command 
line.

The changes were implemented inside the MogrifyImage() function, which 
is also used by some other GM commands so it is likely that there will 
be a change to other commands as well.  No changes were required to 
the test suite due to this change.

Please test the latest development snapshot and report any new issues 
encountered.

Thanks,

Bob
-- 
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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