Create README.md
add a README.md and fix the uvcat/main.c no errorno member bug in the master branch….
update the uvcat/main.c to work in master branch..
fix the uvcat/main bugs....
fix the uvtee/main.c bug....
try to fix the tcp-echo-server/main bug…..
Merge pull request #52 from AdoHe/master

update the uvcat/main.c since uv_fs_t has no errorno member in the master branch