+ add installed param.
 * add ob_start and remove utf-8 bom.
 + add tmp directory.
 * remove the header section.
 + add send method.
 * adjust code.
 - remove the method of checkCentOS().
 - remove the mothod of saveSQL().
 + add the method of removeUTF8Bomi().
 * rewrite the error handler.
 * adjust code.
 + add gitignore file.
 * change the version.
 * change the pakcage name.
 * adjust header file.
 * adjust title assign.