Add Copyright notice to each source file, as requested by debian.

svn path=/trunk/httpp/; revision=5792

src/httpp/httpp.c

 /* Httpp.c
 **
 ** http parsing engine
+** 
+** This program is distributed under the GNU General Public License, version 2.
+** A copy of this license is included with this source.
 */
 
 #ifdef HAVE_CONFIG_H

src/httpp/httpp.h

 /* httpp.h
 **
 ** http parsing library
+** 
+** This program is distributed under the GNU General Public License, version 2.
+** A copy of this license is included with this source.
 */
 
 #ifndef __HTTPP_H

src/timing/timing.c

 /* timing.c
 ** - Timing functions
+**
+** This program is distributed under the GNU General Public License, version 2.
+** A copy of this license is included with this source.
 */
 
 #ifdef HAVE_CONFIG_H

src/timing/timing.h

+/*
+** Timing functions.
+** 
+** This program is distributed under the GNU General Public License, version 2.
+** A copy of this license is included with this source.
+*/
+
 #ifndef __TIMING_H__
 #define __TIMING_H__