Continually Looks for a .jshintrc file

Sublime-JSHint now looks up directories continually, just like what the official JSHint does.
Oops, forgot to delete the commented out code.
Removed npm-debug.log.
Merge pull request #13 from shovon/continual-lookup

Continually Looks for a .jshintrc file
Removed unused functions and vars
Added a comment about how the .jshintrc file is searched for
Refactor .jshintrc search loop a bit to use less code
Handle deprecated way of setting globals using 'predef' as an array