untabify

re-fix Field.h API dependency

fix shift/conflict reduce in parser introduced by Field stuff

change new post API to allow multiple meshes in a single view (different
meshes in different steps)

- notion of partitions and interpolationScheme
- move string utils in separate file

api cleanup: use ByTag consistently (emphasises slowness of lookup)

- clean up GModel API (xxByTag -> getXx, numXx -> getNumXxes, ...)

bug fix: even when a For/EndFor loop was not entered, we still increased
ImbricatedLoop. This could lead to undefined behaviour with nested loops

Smoother Surface{list} = numsteps;

use geom.tol in FinishUpBoundingBox

move random seed init in GenerateMesh

fix dangerous clean

make sure we define  YY_NO_UNISTD_H on wind32

API cleanup: FVertex, FEdge, etc. -> fourierVertex, fourierEdge, etc.

make parser embeddable in code with other parser (yy->gmsh_yy)
more work on headers
fixed lots of gcc warnings

start reducing header pollution (removed Gmsh.h + cleaned up GModel & co)

more Visual C++ work

more work for Visual C++

rename transf params & remove unused ones in old structs

fix memory bugs