working dans-gdal-scripts for v0.22

A collection of tools that compliment GDAL tools.

Very stable set of tools that are useful to folks doing geospatial data analysis using the open source stack.  

dans-gdal-scripts has been available from Ubuntu for a while and recently had minor tweaks to get it into Fedora repositories.  Can't let the homebrew GDAL users be left out of the fun.

Only long-term tweak will be to migrate recipe to pull from /gina-alaska/dans-gdal-tools tagged targets.