Send Page to a Friend CJP to offer mission for young leadership   By Editor The Jewish Advocate   BOSTON - This fall, Combined Jewish Philanthropies' young leadership is taking off - for Eastern Europe. From Nov. 8-15, Boston-area young adults will visit Prague and our Ukrainian sister city Dnepropetrovsk.  Sponsored by CJP's Young Leadership Division and its Ben-Gurion society, the mission is accepting applications through August.  An information meeting will be held at 7 p.m. on Thursday, July 10, at Revolution Rock Bar. For more information, contact (617) 457-8583.