[TASK] Update jshintrc

@wltsmrz Thanks for polishing up the jshintrc file. There are just two edits that I'd like to add: removing the `boss` and `W004` relaxing options. I also moved `laxbreak` to the end, that is one relaxing option that may have some readability benefits. And I removed `camelcase` since it has no effect.

I can't think of any cases where `boss` (assignments where comparisons are expected) or `W004` (redefining parameters) should be allowed, but if there is a rare case where someone really wants to use it, they can disable the jshint warning with the `// jshint ignore:line` comment directive. But I'd imagine that 99% of the time when these warnings fire it will be catching bugs for us.