Revert "Allowing task-level options to override .jshintrc file options. Closes GH-24."

This reverts commit fc6397ecaa9545024a04d3c4cca183ced2322830.

Conflicts:
	README.md

"So .jshintrc files probably shouldn't be merged. With other .jshintrc or arbitrary options. Ever."
  - @cowboy

See GH-24.