Merge branch 'master' into all-contributors/add-dgruntz

# Conflicts:
#	.all-contributorsrc
#	README.md

.all-contributorsrc

@@ -291,15 +291,6 @@
         "code"
       ]
     },
-    {
-      "login": "christofferh",
-      "name": "Christoffer Hamberg",
-      "avatar_url": "https://avatars1.githubusercontent.com/u/767643?v=4",
-      "profile": "https://christofferh.com",
-      "contributions": [
-        "code"
-      ]
-    },
     {
       "login": "dgruntz",
       "name": "Dominik Gruntz",

README.md

@@ -150,7 +150,6 @@ This project is licensed under the terms of the MIT license.
     <td align="center"><a href="https://github.com/leogtzr"><img src="https://avatars0.githubusercontent.com/u/1211969?v=4" width="100px;" alt=""/><br /><sub><b>Leo Gutiérrez Ramírez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leogtzr" title="Code">💻</a></td>
     <td align="center"><a href="https://bitbucket.org/hannespernpeintner/"><img src="https://avatars3.githubusercontent.com/u/1679437?v=4" width="100px;" alt=""/><br /><sub><b>Hannes</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hannespernpeintner" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/dgruntz"><img src="https://avatars0.githubusercontent.com/u/1516800?v=4" width="100px;" alt=""/><br /><sub><b>Dominik Gruntz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dgruntz" title="Code">💻</a></td>
-    <td align="center"><a href="https://christofferh.com"><img src="https://avatars1.githubusercontent.com/u/767643?v=4" width="100px;" alt=""/><br /><sub><b>Christoffer Hamberg</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christofferh" title="Code">💻</a></td>
   </tr>
 </table>