Optionally track controller and action about exceptional-php

[ankane]

Great suggestion Adam! It's been added to the latest commit.

[tjchambers]

In researching another issue I noted that my $controller was not being passed to Exceptional. Turns out while the and/or was mentioned in the issues above, implementation of this require BOTH ACTION AND CONTROLLER to be specified. Specifying one without the other does not pass either.

It seems logical that this should allow passing either $controller or $action individually if either are set. I say this because I am using them as a tracking device for the package the error originated from and only need one set (could set the other with a dummy value but...).