Use the latest version of fink.
Merge pull request #19 from dak180/topic/setup

Use the latest version of fink.
[buildfink] use head -n format
[buildfink] add newer perl version variants and flag-sort/f-p-p filters
Add filter descriptions for Fink helper tools
[buildfink] use the category descriptions file
Merge pull request #20 from nieder/master

Updates to buildfink files