move product and payment documentation to the docs/ directory
more about products
refactor the sendmail.pl script to pass parameters instead of having global variables
there is no need to set another from, the module takes care of it
remove commented out code
better variable name
refactor the sendmail function in Perl::Maven to match the parameters that of the send_mail in the bin/sendmail.pl
rename sendmail to send_mail
copy content and convert html to text if necessary
move send_mail and html2text functions to the new Sendmail module