Initial commit
ypkg2
add files
deleted:    db.o
modified: Makefile
fix bug
fix bug
fix bug
fix bug
Optimized
add data.c
add data.h
fix bug
arch detect
up
up
up
add preg
	modified:   data.h
	modified:   db.h
	modified:   package.c
	modified:   package.h
	modified:   ypkg-import.c
	modified:   ypkg.c

修改某些结构的名称，解决autotools工具自动定义 PACKAGE 导致的问题
add yget2