* lisp/gnus-vers.el (gnus-revision-number): Increment to 01.

* lisp/gnus-vers.el (gnus-revision-number): Increment to 01.

* lisp/nnmail.el: Don't bind the colon keywords here.
* lisp/gnus.el (gnus-colon-keywords): New variable which will default to the
 value of `dgnushack-colon-keywords'; bind them.
* lisp/dgnushack.el (dgnushack-unexporting-files): Add dgnuskwds.el.
(dgnushack-colon-keywords): New constant which will have the colon keywords
 shuld be bound at run-time for old Emacsen;
 cache them in the file dgnuskwds.el and bind them.
(locate-library): Make the function to be silent for Mule.
* lisp/Makefile.in (clean): Remove dgnuskwds.el.