Add a new study by running two commands on the biom/mapping files
remove map_sample_space.py
unremoving the library and removing the script file
Fixing bug created by my mistake of erasing the map_sample_space.py library vs. the script and adding the missing text for help
Fixing comments
Fixing test
Fixing small bug due to file read (studies.txt)
Merge pull request #41 from antgonza/add_study

Add a new study by running two commands on the biom/mapping files