Merge pull request #742 from crest-cassia/update_gems

Update gems

Gemfile.lock

@@ -86,7 +86,7 @@ GEM
       railties (>= 4.2.0)
     faker (1.9.5)
       i18n (>= 0.7)
-    ffi (1.11.1)
+    ffi (1.15.0)
     font-awesome-rails (4.7.0.5)
       railties (>= 3.2, < 6.1)
     globalid (0.4.2)
@@ -149,7 +149,7 @@ GEM
       pry (~> 0.10)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    puma (4.3.1)
+    puma (5.2.2)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -189,7 +189,7 @@ GEM
       ffi (~> 1.0)
     record_tag_helper (1.0.0)
       actionview (~> 5.x)
-    redcarpet (3.4.0)
+    redcarpet (3.5.1)
     redis (3.3.5)
     rspec-core (3.8.2)
       rspec-support (~> 3.8.0)
@@ -235,8 +235,8 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     stackprof (0.2.12)
-    sys-filesystem (1.2.0)
-      ffi
+    sys-filesystem (1.4.1)
+      ffi (~> 1.1)
     temple (0.8.1)
     thor (1.1.0)
     thread_safe (0.3.6)