Add jquery-selection

bower.json

@@ -26,6 +26,7 @@
     "reveal.js": "~3.0.0",
     "jquery": "~2.1.3",
     "highlightjs": "~8.4.0",
-    "inline-attachment": "~2.0.1"
+    "inline-attachment": "~2.0.1",
+    "jquery-selection": "~1.0.1"
   }
 }

gulpfile.js

@@ -41,6 +41,7 @@ var js = {
     'node_modules/socket.io-client/socket.io.js',
     'bower_components/marked/lib/marked.js',
     'bower_components/jquery.cookie/jquery.cookie.js',
+    'bower_components/jquery-selection/src/jquery.selection.js',
     'bower_components/highlightjs/highlight.pack.js',
     'resource/js/crowi.js'
   ],