Removed jshint boss and fixed warnings
Removed jshint expr and fixed warnings
Removed jshint eqnull and fixed warnings
Removed jshint sub and fixed warnings
Changed jshint option unused to true and fixed warnings
Changed jshint browser option to false and fixed warning
Added jshint newcap and undef options and fixed warning
Merge pull request #462 from vschoettke/add-jshint-restrictions

Added more JSHint restrictions