Update src/Airbrake/EventHandler.php

Fix line number output in message. %i doesn't work.
Merge pull request #10 from lgladdy/master

Fix a bug in the message string
Move warnings from fatal errors to warning errors

I'm not sure if there is a justification i'm missing here, but a PHP warning was being classed as a fatal error and throwing an exception, rather than just logging the warning. This changes that behaviour so warnings are treated as warnings.
Merge pull request #11 from lgladdy/master

Move warnings from fatalErrors array to warningErrors
Merge pull request #9 from weotch/master

Adding more information to exception messages
Warnings are no longer reported if not configured to during PHP shutdown.
Merge pull request #12 from jstayton/on-shutdown-warnings

Warnings are no longer reported if not configured to during PHP shutdown...
Tweaked README to reflect updated composer autoloader location.
Merge pull request #13 from etdebruin/master

I tweaked the README
Fix the shutdown message to not be so verbose, to prevent Airbrake from grouping them #14