chore(validate.js): Replace validatejs Meteor package with direct npm import

Packages/ohif-hanging-protocols/package.js

@@ -4,6 +4,10 @@ Package.describe({
     version: '0.0.1'
 });
 
+Npm.depends({
+    'validate.js': '0.9.0'
+});
+
 Package.onUse(function(api) {
     api.versionsFrom('1.4');
 
@@ -16,7 +20,6 @@ Package.onUse(function(api) {
     api.use('natestrauser:select2@4.0.1', 'client');
     api.use('clinical:router@2.0.19');
     api.use('momentjs:moment');
-    api.use('validatejs');
 
     // Our custom packages
     api.use('ohif:core');