removed old boost version made boost required

Gabriele Contini

2019-09-01 296baa1f2f26aa5fe711d154d557ca2a7d6f9b5d

 src/library/base/EventRegistry.h

@@ -2,7 +2,7 @@
 * EventRegistry.h
 *
 *  Created on: Mar 30, 2014
 *      Author: devel
 *      
 */

#ifndef EVENTREGISTRY_H_