(Makefile): Add DESTDIR Support. Do not strip by default on install. By Matthew Johnson <debian@matthew.ath.cx>

Signed-off-by: Jari Aalto <jari.aalto@cante.net>
src/id3file.c: Add missing include <string.h>. By Matthew Johnson <debian@matthew.ath.cx>
man/id3ren.1: Add manual page. By Matthew Johnson <debian@matthew.ath.cx>

Signed-off-by: Jari Aalto <jari.aalto@cante.net>
Adjust list of music genres. By Matthew Johnson <debian@matthew.ath.cx>

Signed-off-by: Jari Aalto <jari.aalto@cante.net>
Add braces to if statements. By Matthew Johnson <debian@matthew.ath.cx>

Signed-off-by: Jari Aalto <jari.aalto@cante.net>