- only save the options that differ from the default values (unless we
  explicitly ask to save everything)

- tweak the auto doc routines

- added hacked version of the GNU matheval library to evaluate parsed
  functions efficiently ("a la getdp", but faster): I added a new
  directory (gmsh/MathEval) with that code, as well as a new configure
  option and a new define (HAVE_MATH_EVAL)

- generalized the plugin option code to accept arbitrary string options

- new plugin Plugin(Evaluate) that can evaluate arbitrary functions on
  scalar views (useful for example to create background meshes)

PS: Everything (octree + function evaluation) is now in place to write
a general plugin that can make any operation between arbitrary
views...

left some CVS dirs in the source archives

upgrade gl2ps to 1.2.0

use abort() instead of exit() when we really want to exit *now*

INFO->DEBUG for sys2x2 and sys3x3_with_tol

- add GUI for exporting characteristic length fields
- error->warning if lc <= 0
- don't enable POLYGON_OFFSET_FILL for 3D isos

typo

some more bgmesh cleanups

3d background mesh example

re-enabled ONFILE background meshes in the 3D case

Small corrections for ONFILE background meshes:

- should now work reliably interactively (and not only the first time
  the view is applied as a background mesh)

- fixed some memory leaks

added a couple of nice examples

1.52

Only enable POLYGON_OFFSET_FILL for volume faces if we draw the
edges. Otherwise it looks pretty bad since we draw connected faces
with large differences in orientation.

reverting to old rpm build method

build source rpm, too

add volume test for 2nd order tets in UNV format, too

- enable lights by default
- remove obsolete comments about MergeWithBoundingBox

Fixed orientation of polygons produced by CutTriangle2D so that we can
use a TWO_SIDE light model everywhere. This also fixes the ugly "checkboard
patterns" when using custom scales on continuous maps.

removed unused variables

Simplified the way we deal with View.Raise: instead of trying to be clever,
let's just use coord += raise * value. This is far more predictable and
matches the behaviour of the plugins.

use default line width to draw bounding boxes and axes

wording

draw string with min/max of the bounding box (very useful when we have no
geometry points to check the coorrdinates from!)

added comment about unknown origin of the code

Removed General.MovingLight option (confusing, and never really worked
anyway)

pretty print

add a bit more space between y-axis and labels

pretty print

pretty print

pretty print

set default position of 2d graphs 20 pixels more to the right

pretty print