Include file name and line number in error message for syntax errors

As @nickdima pointed out at #37, it would be nice to show file name and line number of syntax error.

Browserify and some transforms like coffeeify emits ParseError defined in [node-syntax-error](https://github.com/substack/node-syntax-error). It has file name and line number in `annotated` property. So let's use it if available.