Log Message:
Update to 1.4.2.
New features include:

* A new function buffer-toggle-compression (and corresponding entry
in the Document menu) has been added to change whether the file
will be compressed on disk or not.

* A "LaTeX (pdflatex)" output format has been added. This new
output format produces .tex files that are suitable for pdflatex,
including figure conversion to png, pdf or jpeg instead of eps.

Changelog is at http://www.lyx.org/announce/1_4_2.txt

MESSAGE updated for new user interface.

gtar not needed to extract.

(Note that the xforms version was not tested.)