Remove empty brackets from log files

The current log files generated by Laravel all show empty brackets at the end of log files. We can remove these by using the $ignoreEmptyContextAndExtra parameter in the default Monolog LineFormatter.

http://stackoverflow.com/questions/13968967/how-not-to-show-last-bracket-in-a-monolog-log-line
Fixed routes with fragments in the URL
Moved patchwork/utf8 to require
Merge branch 'route-fragments' of https://github.com/tylercrompton/framework into tylercrompton-route-fragments
Make it case insensitive
Cleaning up some code.
Merge pull request #6566 from GrahamCampbell/5.0-support

[5.0] Moved "patchwork/utf8" To Require
Return instead of break
Fixing conflicts.
Merge branch 'master' of github.com:laravel/framework
Merge pull request #6667 from antonioribeiro/envCaseInsensitive

Make env() helper case insensitive
Fixing a few formatting things.
Let Container::call accept every single callable type