[Pw_users] Updated PWscf version

[Paolo Giannozzi]

An updated version (2.1.2) of the Quantum-ESPRESSO [*] distribution,
including PWscf, is available for download from the web site 
http://www.pwscf.org and from the "Scientific Software" page of
Democritos (http://www.democritos.it). The updated version contains 
almost exclusively bug fixes. Everybody who is using the PWscf package
is encouraged to upgrade and to report problems to the mailing list.
People with slow Internet connections may download a small patch. 

The Quantum-ESPRESSO group

[*] the change of name is due to the need to distinguish our distribution
    from another ESPRESSO package, dedicated to simulation of soft matter