tCircle and tCoherence were removed from the lexer? WTF?

- only save mesh vertices that are used by elements

- fix warnings + indent + memory leaks in new Field classes

- temporary fix to avoid crashes in new field manager when post-pro
  views are reloaded or removed at run-time

Jonathan

background mesh. I've still to write some fields sub-class, but backward
compatibility should be ok now.
Jonathan
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we use the Lawson algorithm for 3D surface and the smallest circumsphere
of the triangles as circumcircle.

JFR

consolidate all SVector/SPoint/SBoundinBox into header files only
+ fixed little put in SPoint3

compatibility when extruding multiple entities at once)

fix readUNV (did not recogmnize "Rod", etc. as beam elements)

patch for Debian folks (gcc 4.3)

fix pb when choosing solver exe interactively

ask more reasonnable (hum) 16Mb of stack on Win32

- temp fix in gui so that one can not set order>2 by just dragging the mouse
(>2 is too buggy for general use)

- simplify OCC doc (6.2 works OK!)

prepare for named string expr

- changed '-convert' syntax to process multiple files at once

- added lateral entities in list returned by extrusion commands

better logic (fix bug where we could not get grids coarser than CTX.lc/10)

bug: fixed nasty double free in GEdge destructor

add stack check for unix (same as the one we use in getdp)

fix warn

- tentative fix for the "mysterious" crashes on Windows:

  I think that the problem comes from the new recursive tetra
  classification, where we probably overflow the stack on Windows. The
  fix is to request a larger initial stack size through the linker.

- added option to control label saving in unrolled geo files

- only test for neg jacobians for 2D/plane meshes for now

- fixed several compiler warnings

fix scaling of u,v in "periodic" algo (this was the cause of the high order
bug on OCC geometries)

polish