Upgraded documentation for release #318

- added information and updated image about caching 
  now former meta data #310

egradle-plugin-main/html/user_guide/import.html

@@ -102,6 +102,15 @@ <h4 id="import_by_importer_reimport">Reimporting current root project</h4>
 	context menu you got the import action:  
 	</p>
 	<img src="images/egradle-import-context-menu.png" />
+	<p>
+		When checkbox <code>"Restore former meta data"</code> is checked a 
+		cache for meta data of rebuilding projects will be created and reapplied 
+		after reimport is done. This will also restore Teamprovider data as well, so 
+		you will not have to share projects again after reimport is done...<br><br>
+
+		If there are any problems or you want to loose current meta data simply uncheck
+		the option and do the reimport.
+	</p>
 	<p>
 		<a href="#top">Top</a>
 	</p>