This trick will dynamically load NPM tasks instead of having to load them manually.

gistfile1.js

/*
first install matchdep via NPM: npm-install matchdep --save-dev
then replace all of your grunt.loadNpmTasks( 'taskname' ) code with the following line:
*/

//dynamically load tasks
require( 'matchdep' ).filterDev( 'grunt-*' ).forEach( grunt.loadNpmTasks );