fixed mailer to not send emails if no recipients
merge
sending emails bcc and in threads
pulled threading for emails out to mail delivery method
shifts sub requests dependent destroy
finished up tests
added readme stuff for mailcatcher
let shift and subrequest
reformatted sub_request_controller_spec
rubocop fixes
fixed rubocop autocorrect error
Merge pull request #1542 from affektive/1530

shifts sub requests dependent destroy closes #1530
Merge pull request #1531 from affektive/1494

#1494
Merge branch 'master' of github.com:duffcodester/digiquatics into rubocop

Conflicts:
	spec/api/help_desks_spec.rb