don't need to check for leading dot

IPython/frontend/html/notebook/static/js/completer.js

@@ -8,18 +8,15 b' var IPython = (function (IPython) {'
     // easyier key mapping
     var key = IPython.utils.keycodes;
 
-    // what is the common start of all completions
     function _existing_completion(item, completion_array){
-        if(item.substr(0,1) == '.') {
             for( var c in completion_array ) {
                 if(completion_array[c].substr(-item.length) == item)
                 { return true; }
             }
             return false;
         }
-        else {return completion_array.indexOf(item) != -1}
-    }
 
+    // what is the common start of all completions
     function shared_start(B) {
         if (B.length == 1) {
             return B[0];