ac2 rework: fixes for unit and int tests

...ontrol-Server/src/ca/nrc/cadc/ac/server/ldap/LdapDAO.java

...ol-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java

...trol-Server/src/ca/nrc/cadc/ac/server/web/SyncOutput.java

...c/ca/nrc/cadc/ac/server/web/users/AbstractUserAction.java

...src/ca/nrc/cadc/ac/server/web/users/ModifyUserAction.java

...rc/ca/nrc/cadc/ac/server/web/users/UserActionFactory.java

...rver/src/ca/nrc/cadc/ac/server/web/users/UserServlet.java

...ca/nrc/cadc/ac/server/web/users/ModifyUserActionTest.java

...a/nrc/cadc/ac/server/web/users/UserActionFactoryTest.java

projects/cadcAccessControl/src/ca/nrc/cadc/ac/User.java

...adcAccessControl/src/ca/nrc/cadc/ac/client/GMSClient.java

...ca/nrc/cadc/ac/client/JSONUserListInputStreamWrapper.java

...ca/nrc/cadc/ac/client/JsonUserListInputStreamWrapper.java

...dcAccessControl/src/ca/nrc/cadc/ac/client/UserClient.java

...sControl/src/ca/nrc/cadc/ac/xml/AbstractReaderWriter.java

...AccessControl/src/ca/nrc/cadc/ac/xml/GroupListReader.java

...AccessControl/src/ca/nrc/cadc/ac/xml/GroupListWriter.java

...cadcAccessControl/src/ca/nrc/cadc/ac/xml/GroupReader.java

...cadcAccessControl/src/ca/nrc/cadc/ac/xml/GroupWriter.java

...cAccessControl/src/ca/nrc/cadc/ac/xml/UserListReader.java