BZ-1110743 - Process Execution stops after subprocess

(cherry picked from commit e9cabe417a17c78dc5323c24eda91939b19d37c6)
BZ-1121181 - 'This session was previously disposed' when used Spring+JTA+PER_PROCESS_INSTANCE
BZ-1110206 - LDAPUserGroupCallbackImpl and LDAPUserInfoImpl do not support SUB_TREE search scope

(cherry picked from commit dd2b435682fbc1c702a24d6085bf0091a7d82f17)