[xcrysden] Updated version of SKEAF extremal area program

[Patrick Rourke]

Dear XCrysDen users,

This is an update to let you know that a new version (v1.3.0 r149) of
the SKEAF extremal area code for extracting quantum oscillation
information from calculated Fermi surfaces in the XCrysDen BXSF format
has been released. The new version contains several important
improvements and bug fixes (see the README-forSKEAF file for details),
so users are highly recommended to upgrade to this version.

As before, the SKEAF source code and program instructions can be
downloaded from the WIEN2k "Unsupported software goodies" page (
http://www.wien2k.at/reg_user/unsupported/ ). The algorithm underlying
the code is described in P.M.C. Rourke and S.R. Julian, Computer
Physics Communications 183, 324 (2012) (also available on the arXiv at
http://arxiv.org/abs/0803.1895 ).

Best regards,

Patrick Rourke