Added megam_to_csv for converting .megam files to .csv
Added missing header to megam_to_csv output and made default value for features 0, since that's implied by .megam format.
Fixed indentation inconsistency in setup.py
Minor bugfix in csv_to_megam that I noticed while working on megam_to_csv.
Prevent potential rounding issues by switching to Decimal in csv_to_megam
Merge pull request #13 from EducationalTestingService/megam_to_csv

Added megam_to_csv