Split FFmpeg documentation into general documentation and the documentation

of the ffmpeg command line program.

Originally committed as revision 10255 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -124,7 +124,8 @@ vhook/%.o: vhook/%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
 
 documentation: $(addprefix doc/, ffmpeg-doc.html faq.html ffserver-doc.html \
-                                 ffplay-doc.html hooks.html $(ALLMANPAGES))
+                                 ffplay-doc.html general.html hooks.html \
+                                 $(ALLMANPAGES))
 
 doc/%.html: doc/%.texi
 	texi2html -monolithic -number $<