st: Update to -estout- on SSC; -estout- now includes -estadd-, -esta-, and -esto-

["Ben Jann" <ben.jann@gmail.com>]

Thanks to Kit Baum, an update to the -estout- package is available
from the SSC Archive.

The most important change is that the -estout- package now subsumes
the packages previously circulated as -esta-, -estadd-, and -esto-.

I suggest you first type

. ssc uninstall esto
. ssc uninstall esta
. ssc uninstall estadd

to uninstall the discontinued packages (the above commands may return
error if there are multiple instances of the packages installed; use
-adoupdate- in this case to clean-up the list of installed packages),
and then type

. ssc install estout, replace

or use -adoupdate- to install the new version.

Other important changes:

- The shorthand conventions for -estout- options such as keep() and
drop() have changed. You may now use the * and ? wildcards with both
equation names and parameter names. However, support for simple
abbreviation (without wildcards) is discontinued.

- The -csv- document format in -esta- now uses a comma as the column
delimiter. In turn, there is a new semicolumn-delimited format called
-scsv-. Use -scsv- with, for example, the German version of Excel.

- The -rtf- document format has been much improoved and it should now
work with about any RTF reader.

A new paper on -estout- is available from my website:
http://www.socio.ethz.ch/people/jannb/wp/esta.pdf

Cheers,
ben
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