first commit.
working on namespaces.
preparing for subtree splits.
swap components to dev-master temporarily while splitting.
swap aliases.
update all deps to 4.0.x in components.
use setFrom instead of addFrom.
allow plain text emails only.
Add a replyTo() method to add Reply-To: addresses to the message.
I forgot to delete a CRLF.
Fix some namespace/parameters in phpdocs
Add support for "mail" driver.
Fix docBlocks for PHPStorm.
Add phpunit to Illuminate component dependencies
implement mail::queue
Added `Mail::queue`, `Mail::later`, `Mail::queueOn`, and `Mail::laterOn`.
Fix phpdocs

Mostly fully qualified namespaces, incorrect classes or wrong/missing
return values.
Swallow exceptions on mail job delete.
Allow $m->to, etc. to take an array of e-mails.
Make delete method a no-op on push queue jobs to avoid errors.