update devise to 2.2.4

Gemfile

@@ -13,7 +13,7 @@ gem 'json',        '1.8.0'
 
 # Authentication
 
-gem 'devise', '2.1.3'
+gem 'devise', '2.2.4'
 
 # Background processing
 

Gemfile.lock

@@ -91,7 +91,7 @@ GEM
       nokogiri (>= 1.5.0)
       rails (~> 3.0)
     database_cleaner (1.1.0)
-    devise (2.1.3)
+    devise (2.2.4)
       bcrypt-ruby (~> 3.0)
       orm_adapter (~> 0.1)
       railties (~> 3.1)
@@ -440,7 +440,7 @@ DEPENDENCIES
   configurate (= 0.0.8)
   cucumber-rails (= 1.3.1)
   database_cleaner (= 1.1.0)
-  devise (= 2.1.3)
+  devise (= 2.2.4)
   factory_girl_rails (= 4.2.1)
   faraday (= 0.8.8)
   faraday_middleware (= 0.9.0)

config/initializers/devise.rb

@@ -81,7 +81,7 @@ Devise.setup do |config|
 
   # ==> Configuration for :validatable
   # Range for password length
-  # config.password_length = 6..20
+  # config.password_length = 8..20
 
   # Regex to use to validate the email address
   # config.email_regexp = /^([\w\.%\+\-]+)@([\w\-]+\.)+([\w]{2,})$/i

config/locales/devise/devise.en.yml

@@ -10,6 +10,7 @@ en:
       unauthenticated: 'You need to sign in or sign up before continuing.'
       unconfirmed: 'You have to confirm your account before continuing.'
       locked: 'Your account is locked.'
+      not_found_in_database: 'Invalid email or password.'
       invalid: 'Invalid username or password.'
       invalid_token: 'Invalid authentication token.'
       timeout: 'Your session expired, please sign in again to continue.'