create QuoteRune.md
create QuoteRuneToASCII.md
create QuoteRuneToASCII.md
create QuoteRuneToASCII.md
create UnquoteChar.md
update todo.md
update NumError.Error.md
update README.md
update LookupAddr.md
update net.LookupCNAME.md
更新示例，以说明功能
Merge pull request #198 from vzever/master

finish strconv