Updated 3 gems by rebuilding Gemfile.lock file

Gemfile.lock

@@ -49,7 +49,7 @@ GEM
       rack (>= 0.9.0)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    brakeman (3.1.1)
+    brakeman (3.1.2)
       erubis (~> 2.6)
       fastercsv (~> 1.5)
       haml (>= 3.0, < 5.0)
@@ -57,6 +57,7 @@ GEM
       multi_json (~> 1.2)
       ruby2ruby (>= 2.1.1, < 2.3.0)
       ruby_parser (~> 3.7.0)
+      safe_yaml
       sass (~> 3.0)
       slim (>= 1.3.6, < 4.0)
       terminal-table (~> 1.4)
@@ -193,7 +194,7 @@ GEM
       websocket-driver (>= 0.2.0)
     powder (0.3.0)
       thor (>= 0.11.5)
-    power_assert (0.2.4)
+    power_assert (0.2.5)
     pry (0.10.3)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -258,6 +259,7 @@ GEM
       sexp_processor (~> 4.0)
     ruby_parser (3.7.2)
       sexp_processor (~> 4.1)
+    safe_yaml (1.0.4)
     sass (3.4.19)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)