bump sentry-raven

Gemfile

@@ -16,7 +16,7 @@ gem 'sinatra-contrib', require: nil #github: 'sinatra/sinatra-contrib', require:
 
 gem 'active_model_serializers'
 gem 'unicorn'
-gem 'sentry-raven',    github: 'getsentry/raven-ruby'
+gem 'sentry-raven'
 gem 'yard-sinatra',    github: 'rkh/yard-sinatra'
 gem 'rack-contrib',    github: 'rack/rack-contrib'
 gem 'rack-cache',      github: 'rtomayko/rack-cache'

Gemfile.lock

@@ -5,14 +5,6 @@ GIT
     metriks-librato_metrics (1.0.2)
       metriks (>= 0.9.9.6)
 
-GIT
-  remote: git://github.com/getsentry/raven-ruby.git
-  revision: 84392e5db701f0b5c66802aab9cc82ef9a5ad830
-  specs:
-    sentry-raven (0.10.1)
-      faraday (>= 0.7.6)
-      uuidtools
-
 GIT
   remote: git://github.com/rack/rack-contrib.git
   revision: 1b11346d729efd88b274cd7f704e0bca9eb3de7a
@@ -171,7 +163,7 @@ GEM
     erubis (2.7.0)
     factory_girl (2.4.2)
       activesupport
-    faraday (0.9.1)
+    faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.6)
     foreman (0.64.0)
@@ -269,6 +261,8 @@ GEM
     rspec-expectations (2.99.2)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.99.2)
+    sentry-raven (0.15.3)
+      faraday (>= 0.7.6)
     sidekiq (3.3.0)
       celluloid (>= 0.16.0)
       connection_pool (>= 2.0.0)
@@ -321,7 +315,6 @@ GEM
       rack
       raindrops (~> 0.7)
     useragent (0.13.3)
-    uuidtools (2.1.5)
     virtus (1.0.5)
       axiom-types (~> 0.1)
       coercible (~> 1.0)
@@ -355,7 +348,7 @@ DEPENDENCIES
   rerun
   rspec (~> 2.13)
   s3!
-  sentry-raven!
+  sentry-raven
   simplecov
   sinatra
   sinatra-contrib