Criated method parseToCSV and added opencsv dependency to maven. Related to #10
added javadoc to methods and solved the CSVWriter closing twice problem. Related to #10 and #20
modified the output format of the csv file and added the -o option to the Option class. Related to #10
modified the csv metrics format and changed the CmdMain in order to deal with the -o command line option. Related to #10
little change to make a prettyprinted json file from the output metrics. Related to #10
applying some refactoring in the metrics output. related to #10
solving merge conflicts