Get absolute paths of the input files
Zip file only if user has specified a zipped output filename
Comments added to show that the results will only be zipped if user specifies a zipped output filename
Comments added about optional zipping of output
Change the way the zipped file is retrieved
Trying out different things to produce zipped output
Always zip the results of SGA
Merge pull request #21 from nds/add_sga_step

Add sga step