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and compress man and info files

note that the package release now include -r again.

the split function name is extraced from the subpackage name in subpackages
variable in one of the following formats:

 1. subpackage:func

    The ':' serves as a separator. subpackage is first part, function second

 2. subpackage-func

    Without ':' separator, the subpackage is the entire string. In the
    example above, the package name is 'subpackage-func'.

    Function is extracted from the text after last '-'.

 3. subpackage

    Without either ':' and '-' the function name will be the subpackage name
    itself.

subpackages contains a list of (full) names of the sub packages
splitfuncs contains a list of corresponding function names to be called