Add license file. Fixes #1.
Add license file. Fixes #1.

etehtsea/mysql-postgresql-converter,etehtsea/mysql-postgresql-converter,twillouer/mysql-postgresql-converter,lanyrd/mysql-postgresql-converter,payplug/mysql-postgresql-converter,expa/mysql-postgresql-converter,bignerdranch/mysql-postgresql-converter,gitlabhq/mysql-postgresql-converter,BetterVoice/mysql-postgresql-converter