+01/27/97 Implemented a new Tcl command, egw_clear, which ungets everything
+ written so far (up to 4K). Can be used to change HTTP response
+ header.
+
+01/31/97 Enhanced the egw_source command. An optional parameter specifies
+ the name of a variable in which the HTML is stored.
+
+12/15/97 Limit of form variables set to 4K instead of 512 bytes, and the
+ code truncates larger buffers.