gateway add more sync debug log
DBCall update

1. free conn timeout will report 503 vs Error object
2. psp.rs use h.write over h.line
3. result set judge exception
t.ps support user defined sep, default to :
update to v0.6.6
k_bg add log info
demo unit use UTF8 encoding
update to v0.6.7
gateway add debug info r.url for before stage
de BOM
update readme doc index
improve NoradleGoal.md
demo url use unidialbook.com/demo
install bugfix, drop DBMSHP_xxx first
release v0.6.8