Bump bullet from 5.6.1 to 5.7.0

Bumps [bullet](https://github.com/flyerhzm/bullet) from 5.6.1 to 5.7.0.
- [Changelog](https://github.com/flyerhzm/bullet/blob/master/CHANGELOG.md)
- [Commits](flyerhzm/bullet@5.6.1...5.7.0)

Gemfile.lock

@@ -68,7 +68,7 @@ GEM
     brakeman (4.0.1)
     browser (2.5.1)
     builder (3.2.3)
-    bullet (5.6.1)
+    bullet (5.7.0)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.10.0)
     byebug (9.1.0)
@@ -156,7 +156,7 @@ GEM
     hirb (0.7.3)
     httparty (0.15.6)
       multi_xml (>= 0.5.2)
-    i18n (0.9.0)
+    i18n (0.9.1)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
     interception (0.5)
@@ -416,7 +416,7 @@ GEM
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.3)
-    tzinfo (1.2.3)
+    tzinfo (1.2.4)
       thread_safe (~> 0.1)
     tzinfo-data (1.2017.2)
       tzinfo (>= 1.0.0)