updated a test that was broken

Author: Danny Diekroeger

app/admin.js

@@ -466,4 +466,4 @@ const run = co(function *(testArgs) {
 });
 
 // For admin script and unit testing of functions
-module.exports = { run, validateKey, saveKeys, db };
+module.exports = { run, validateKey, saveKeys, db , requireDB };

test/admin.js

@@ -206,6 +206,7 @@ describe('Offline Admin Tool', function() {
         path: '0'
       };
       const keyList = [key];
+      admin.requireDB();
       yield admin.saveKeys(keyList, 'xpub');
       const foundKey = yield MasterKey.findOne({ pub: xpub });
       foundKey.should.have.property('signature');