* service start exception modify
* master,worker start modify
* .env update
* install-escheduler-ui.sh,monitor_server.py and install.sh scripts comment change to english and install-escheduler-ui.sh use escheduler change to dolphinscheduler
* scripts name standardization
* service start exception modify
* master,worker start modify
* .env update
* install-escheduler-ui.sh,monitor_server.py and install.sh scripts comment change to english and install-escheduler-ui.sh use escheduler change to dolphinscheduler
* Remove useless dependencies and add jsp-2.1-6.1.14
* Determine if principal is empty in getJdbcUrl method
* fix bug when register worker but create master node in zookeeper
* Remove useless dependencies such as hive-shims and log4j
* upgrade commons-email from 1.2 to 1.5 and remove mail-1.4.5.jar
* add support for postgresql in upgrade database
* add support for postgresql in upgrade database