"Simple File Versioning" -> "File Versioning"

see: http://discourse.syncthing.net/t/v0-8-10-simple-file-versioning/259/7?u=jedie

gui/index.html

@@ -508,7 +508,7 @@
                 <div class="form-group">
                   <div class="checkbox">
                     <label>
-                      <input type="checkbox" ng-model="currentRepo.simpleFileVersioning"> Simple File Versioning
+                      <input type="checkbox" ng-model="currentRepo.simpleFileVersioning"> File Versioning
                     </label>
                   </div>
                   <p class="help-block">Files are moved to date stamped versions in a <code>.stversions</code> folder when replaced or deleted by syncthing.</p>