Merge pull request #89 from sunryuan/master

add user page
Bug Fix for NLP int JarExecutor
resize datatable default page size from 10 to 25
Bug Fix for NLP
bug fix
Bug fix for killAttempt method
Change max concurrent attempts from 30 to 50
Merge pull request #90 from ainilife/master

several improve
fix ldap bug
bug fix for NPE in TaurusAlert
Merge pull request #91 from ainilife/master

fix ldap bug
change mail service
modify kill attempt