update gem

Gemfile.lock

@@ -1,21 +1,3 @@
-GIT
-  remote: git://github.com/amatsuda/kaminari.git
-  revision: bc52ae73d41386d344b5d1b18e689e5a988f1a03
-  branch: master
-  specs:
-    kaminari (1.0.1)
-      activesupport (>= 4.1.0)
-      kaminari-actionview (= 1.0.1)
-      kaminari-activerecord (= 1.0.1)
-      kaminari-core (= 1.0.1)
-    kaminari-actionview (1.0.1)
-      actionview
-      kaminari-core (= 1.0.1)
-    kaminari-activerecord (1.0.1)
-      activerecord
-      kaminari-core (= 1.0.1)
-    kaminari-core (1.0.1)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -104,6 +86,9 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
+    kaminari (0.16.3)
+      actionpack (>= 3.0.0)
+      activesupport (>= 3.0.0)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -119,6 +104,7 @@ GEM
     minitest (5.10.2)
     multi_json (1.12.1)
     multi_xml (0.6.0)
+    mysql2 (0.4.6)
     nio4r (2.1.0)
     nokogiri (1.7.2)
       mini_portile2 (~> 2.1.0)
@@ -255,9 +241,8 @@ DEPENDENCIES
   httparty (~> 0.15.5)
   jbuilder (~> 2.5)
   jquery-rails
-  kaminari!
+  kaminari (~> 0.16.3)
   listen (~> 3.0.5)
-  pg
   mysql2 (>= 0.3.18, < 0.5)
   prawn
   prawn-table