DOC one more version issue in doc

Author: ogrisel

doc/themes/scikit-learn/layout.html

@@ -78,7 +78,7 @@
                  <span class="caret"></span>
               </a>
               <ul class="dropdown-menu">
-            <li class="link-title">Scikit-learn 0.19 (development)</li>
+            <li class="link-title">Scikit-learn 0.19</li>
             <li><a href="{{ pathto('tutorial/index') }}">Tutorials</a></li>
             <li><a href="{{ pathto('user_guide') }}">User guide</a></li>
             <li><a href="{{ pathto('modules/classes') }}">API</a></li>