    Npm.depends({
        'mailgun-js': '0.4.13'
    });

Package.describe({
    summary: "Mailgun API - Mailgun api implementation for Meteor."
});

Package.on_use(function(api) {
    // Allow us to detect 'insecure'.
    api.use('insecure', {weak: true});

    api.add_files('mailgun-api.js', ['server']);
    api.export && api.export('Mailgun', ['server']);
});

Package.on_test(function (api) {
    api.use(['mailgun-api', 'tinytest']);

    api.add_files('mailgun-api_tests.js', ['server']);
});

@@ -1,12 +1,45 @@
+(function () %7B%0A    'use strict';%0A
     Npm.depe
@@ -80,24 +80,28 @@
 3'%0A    %7D);%0A%0A
+    
 Package.desc
@@ -107,16 +107,20 @@
 cribe(%7B%0A
+    
     summ
@@ -179,21 +179,29 @@
 eteor.%22%0A
+    
 %7D);%0A%0A
+    
 Package.
@@ -227,16 +227,20 @@
 ) %7B%0A    
+ 
+   
 // Allow
@@ -265,24 +265,28 @@
 ecure'.%0A    
+  
+  
 api.use('ins
@@ -305,32 +305,36 @@
 k: true%7D);%0A%0A    
+  
+  
 api.add_files('m
@@ -370,21 +370,11 @@
     
-api.export &&
+   
  api
@@ -405,21 +405,29 @@
 ver'%5D);%0A
+    
 %7D);%0A%0A
+    
 Package.
@@ -451,24 +451,28 @@
 (api) %7B%0A    
+ 
+   
 api.use(%5B'ma
@@ -494,24 +494,28 @@
 nytest'%5D);%0A%0A
+    
     api.add_
@@ -557,12 +557,22 @@
 ver'%5D);%0A
-%7D);%0A
+    %7D);%0A%7D ());

Put package.js in a closure added use strict