* update README about DolphinScheduler

* Update issue templates

* update

* regularize api pom xml
update rpc maven compile to 1.8

* regularize api pom xml

* change commons.lang3.StringUtils to common.utils.StringUtils

* update pom.xml

* update

* correct equals method

* jasper-runtime is needed when api server start

* jasper-runtime jar is needed when api server start

* combine logback config of master/worker/alert/api server to one logback.xml

* remove tomcat runtime jar

* add UT

* add license

* remove jasper-runtime jar, not need anymore

* sovle jar conflict， remove servlet-api 2.5 jar

* remove servlet 2.5
Co-authored-by: NDS <escheduler@outlook.com>