fix mesh sandwich
fix vol sandwich
added OpenMP compiler flags as comments to flags.guess
added a symbol of gravity calculations on the cover of the manual (now that we can compute the gravity vector and gradiometric tensor in the code)
switched to the new version of src/shared/utm_geo.f90 in order to have support for the Southern hemisphere. Also switched to the WGS84 ellipsoid instead of Clarke 1866. Updated the users manual accordingly.
changed "zone" from double precision to integer (the code worked fine anyway because the value was then used in a double-precision expression)
update instructions for default example based on file name changes
added a warning about versions dot zero of a compiler
cray flags to keep module information
Merge branch 'devel' of github.com:casarotti/specfem3d into devel
added doc/SEM_class_from_Yvon_Maday_to_Dimitri_Komatitsch_and_Jean_Pierre_Vilotte_04apr1995.pdf
fixed a typo in the manual and in my notes
Modif maillage Vadim