Merge pull request #44 from wdw1206/master

primaryKey与partitionKey都存在时，insert路由错误。测试表<table name="travelrecord" aut...
as required by leader, i changed single thread pool into a wild thead in MyCATSequnceProcessor, just like before
Merge pull request #45 from runfriends/master

as required by leader, i changed single thread pool into a wild thead in...
Merge pull request #46 from wdw1206/master

druid1.0.12已发布，支持insert into...values(),()...的代码放开
主键缓存找到路由就退出当前循环，防止后面走其他逻辑导致路由错误。