bump to version 1.3.0 because of new features
bump to version 1.3.0 because of new features

peterbe/premailer,sendwithus/premailer,lavr/premailer,graingert/premailer,BlokeOne/premailer-1,graingert/premailer,ionelmc/premailer,industrydive/premailer,sendwithus/premailer,ionelmc/premailer,kengruven/premailer,kengruven/premailer,lavr/premailer,peterbe/premailer,BlokeOne/premailer-1,industrydive/premailer,peterbe/premailer