* Move usb-dev related code to devices.c from main.c

* Create a root Makefile to build the flasher, logotool and install
* Clean some warning messages

src/Makefile

@@ -1,10 +1,10 @@
 VERSION=0.2
 OBJ=main.o fiasco.o hexdump.o dump.o flash.o
-OBJ+=hash.o fpid.o query.o pieces.o utils.o
+OBJ+=hash.o fpid.o query.o pieces.o utils.o devices.o
 BIN=0xFFFF
 CFLAGS+=-DVERSION=\"${VERSION}\" -Wall -g
 
-main: ${OBJ}
+all: ${OBJ}
 	${CC} ${LDFLAGS} -o ${BIN} ${OBJ} -lusb
 
 clean: