Adding events to logging. 'illuminate.log' event is fired. Also, Log::logging(function($level, $parameters)); Fixes #494.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Switching logging() to listen() for consistency with events.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Fixing typo.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Removing custom handling logic for logging events, will require illuminate/events.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Update changelog.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Merge pull request #497 from bencorlett/feature/log-events

Adding events to logging. Fixes #494.