add jQuery to check for broken images and replace them with standard image. Remove gravatar logic.

models/User.js

@@ -346,7 +346,8 @@ var userSchema = new mongoose.Schema({
         name: String,
         completedWith: String,
         solution: String,
-        githubLink: String
+        githubLink: String,
+        verified: Boolean
       }
     ],
   currentStreak: {
@@ -390,23 +391,4 @@ userSchema.methods.comparePassword = function(candidatePassword, cb) {
     });
 };
 
-/**
- * Helper method for getting user's gravatar.
- */
-
-userSchema.methods.gravatar = function(size) {
-    if (!size) { size = 200; }
-
-    if (!this.email) {
-        return 'https://gravatar.com/avatar/?s=' + size + '&d=retro';
-    }
-
-    var md5 = crypto
-        .createHash('md5')
-        .update(this.email)
-        .digest('hex');
-
-    return 'https://gravatar.com/avatar/' + md5 + '?s=' + size + '&d=retro';
-};
-
 module.exports = mongoose.model('User', userSchema);