Remove swiftmailer dependency.
Readd dependency swiftmailer/swiftmailer.
Fix swiftmailer dependency version.
Add a dummy recipient generator source.
Introduce Pre/PostEnqueueEvent's.
Track transport duration while executing queue.
Rename PreEnqueueEvent::getSkip() into isSkip().
Reduce cyclomantic complexity.
Fix @return docdoc.
fixed grammar and wording
inserted missing letters

sorry, it seems the insert key was accidently pressed.
Merge pull request #1 from DanielRuf/patch-1

fixed grammar and wording
Fix the irc channel.
Add missing import.
Implement the csv file recipient source.
Make the develop branch the upstream branch.
Merge branch 'master' into develop