Exporting necessary information to reuse in grizzly.
Added grunt.depmod_tracker.paths().
README added.
Avoid bailing on parse errors. Just report those in the console.
Define its own watch.depmod-tracker target for watching.

Only try to parse the depmod-tracker file if it was specified to be
watched in the origin task src definition.
Added a 'banner' option.
CODE: increased interval, removed spawn