http.c v 1.01 (hold HTTP1.0 full request)

Now it can hold HTTP1.0 full and simple request, can hold HTTP0.9 simple
request. Give a simple test response if it is a simple request.
net.h v 1.03 (add a member of structure ReqInfo)

Add a member of structure ReqInfo.
Add some define of constant.
net.c v 1.06 (hold HTTP1.0 full request)

Now the server can hold HTTP1.0 full request.
And the server can receive a multi-row request.
Add a test response of a simple request only for test
Merge pull request #18 from lzhang25/master

net.c v 1.06,  http.c v 1.01,  net.h v 1.03 (hold HTTP1.0 full request)