解决Hibernate自动创建表导致activiti的act_id_group和act_id_user没有使用最新版本的sql，导致初始化数据不能导入
Merge branch 'master' of github.com:henryyan/kft-activiti-demo

* 'master' of github.com:henryyan/kft-activiti-demo:
  . add identityService.setAuthenticatedUserId(null)
Merge branch 'master' of github.com:henryyan/kft-activiti-demo

* 'master' of github.com:henryyan/kft-activiti-demo:
  删掉mysql jdbc.url中的"amp;",因为这个是xml中&的转义符配置方法，但在properties中不适用.
Merge remote-tracking branch 'remote/master'

Conflicts:
	pom.xml