Implemented the 'measures_hdf2csv' for ingest Eulerian products. Added s...

...ome generic support for line shape files. Updated 'rgps2vector' to generate shape files for Eulerian in polar stereographic projection (appears the projection that Ron Kwok initialized the grid in). Backed out the latest change I made to the polar stereographic projection file (some verification using Ron's data showed the old definition was in fact right).