chore(package): update uglify-js to version 2.6.4
chore(package): update uglify-js to version 2.6.4

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actionhero/actionhero,crrobinson14/actionhero,crrobinson14/actionhero,gcoonrod/actionhero,witem/actionhero,gcoonrod/actionhero,crrobinson14/actionhero,actionhero/actionhero,S3bb1/actionhero,gcoonrod/actionhero,gcoonrod/actionhero,chimmelb/actionhero,witem/actionhero,chimmelb/actionhero,S3bb1/actionhero,S3bb1/actionhero,witem/actionhero,actionhero/actionhero,actionhero/actionhero,chimmelb/actionhero,witem/actionhero