Update sentry-raven from 2.4.0 to 2.5.3

2.5.x branch have updated performance and additional fixes

Gemfile

@@ -255,7 +255,7 @@ gem 'net-ssh', '~> 3.0.1'
 gem 'base32', '~> 0.3.0'
 
 # Sentry integration
-gem 'sentry-raven', '~> 2.4.0'
+gem 'sentry-raven', '~> 2.5.3'
 
 gem 'premailer-rails', '~> 1.9.7'
 

Gemfile.lock

@@ -775,7 +775,7 @@ GEM
       activesupport (>= 3.1)
     select2-rails (3.5.9.3)
       thor (~> 0.14)
-    sentry-raven (2.4.0)
+    sentry-raven (2.5.3)
       faraday (>= 0.7.6, < 1.0)
     settingslogic (2.0.9)
     sexp_processor (4.9.0)
@@ -1089,7 +1089,7 @@ DEPENDENCIES
   scss_lint (~> 0.47.0)
   seed-fu (~> 2.3.5)
   select2-rails (~> 3.5.9)
-  sentry-raven (~> 2.4.0)
+  sentry-raven (~> 2.5.3)
   settingslogic (~> 2.0.9)
   sham_rack (~> 1.3.6)
   shoulda-matchers (~> 2.8.0)