first commit for update project.
first version.
change README to utf8.
extern to libupdate.
update libupdate
remove current zlib & tinyxml for libupdate. change use to common directory.
del inc.h
update UpdateTools.rc
add missing file md5.hpp
add only check file.
update updater.cpp
update updater.hpp comment.
update README
change first to check setup path
remove unused codes in updater.cpp
remove unused codes.
Merge branch 'master' of github.com:Jackarain/Update
fixed some bugs.

Signed-off-by: Jack <jack.wgm@gmail.com>