remove nasty _IMAPDLG_PRIVATE foo

and untangle orthogonal Update method names

Change-Id: I3f9edb406c3e330a62f58eccf6fc23c210f3994e
drop converted RID_SVXDLG_ADD_SUBMISSION

Change-Id: Ice586c1dbe9adf52cdf8aa2b1a3fda8308f9da1e