Description of problem:

At the moment the ccm command is almost a one shot load command which 
means that making changes (or indeed retesting the installation) 
requires manually deleting various bits and pieces. 

It would be great to have an 'unload' command that could be applied 
package by package. Admittedly it is not going to be possible to 
unload certain packages as easily as others (it at all). A simple 
message could indicate those packages that cannot be unloaded. 

It would similarly be useful to have a ccm 'wipe' command that 
removes all components that the ccm installer has installed (and 
drops all relevant tables). 


Version-Release number of selected component (if applicable):
ccm-tools-0.9.0-1.noarch.rpm


How reproducible:
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Steps to Reproduce:
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Actual results:
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Expected results:
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Additional info:
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