Merge pull request #235 from thinkingfioa/master

sql文件修改

doc/db/tables_xxl_job.sql

@@ -1,3 +1,5 @@
+CREATE database if NOT EXISTS `xxl-job` default character set utf8 collate utf8_general_ci;
+use `xxl-job`;
 
 CREATE TABLE XXL_JOB_QRTZ_JOB_DETAILS
   (