nl_tokens: Check for globally required packages
pl_tokens: function ( packages ) { var thisPackage ; if ( <mask> . length ) { thisPackage = packages . pop ( ) ; var command = nvmUse + ' && npm ls -g ' + thisPackage ; childProcess . exec ( command , cmdOpts , function ( err , stdout , stderr ) { if ( err ) { throw err ; } if ( stdout . indexOf ( 'â”€ (empty)') !== 1)  npmInstall ( thisPackage , function ( ) { checkPackages ( packages ) ; } ) ; } else { checkPackages ( packages ) ; } } ) ; } else { done ( ) ; } }