* change fs.watch to fs.watchFile
* use many JSONStream parsers
* fix bug: createReadStream should use absolutePath
* add tmpCofigDataTbl to hold temp data
* do not watch .swp file
* del needless code
* fix bug: load data duplicatly
* add csv module
* use csv parser
* import tbl class
* use Tbl class to hold config data
* use splice's return value
* change json to csv
* fix bug
* put tbl.js in common dir