doc update

1. logo
2. css
webstorm check update
psp.web.js simplify code
refactor to resWrite, fin see main/all end

1. writeToXXXs call resWrite in common
2. main fin, res.end to browser
3. all fin, push bac to oraSock freelist
r.client_addr will get final client addr/port
psp exception print html <pre>
psp.web.js bugfix res.end sync with fin
remove msg stream support
extract to ResHeader, make res accept simple
dbcall combine req items to one line
db_src_b demo use parameter to limit return rows
DBCall use direct begin marker
DBCall now support big chunked response
test for large dbcall result
noradle support large dbcall result, up to 0.6.9