occ work

fix surfperiodic

more occ work

more occ work

:i

more occ work

occ work

start opencascade integration

added getNumPrimaryVertices (num vertices for a first-order element)

- routines added for finding all or some of an elements neighbours
- many miscellaneous changes and some reorganization

finish Mesh>Edit>Delete

more mesh edit work

small optim

much faster element deletion algorithm

more work on mesh editing

start work on mesh>edit feature (delete elements, etc.)

Only 2D elements have been tested

use for_each like Real Men(tm) do

prepare for extrusion

new GModel::writeGEO (only implemented for gmshModel for now; goal is to be able
to implement this for other derived model types (like OCC) later, too)

- patch from gabriele bellussi
- added GUI hooks for new mesh editing/reparam stuff (for jacob)
- more work on fourieModel

- stores sorted order of vertex addresses
- added Equal, Less, and Hash function objects for MFace and MFace*

- added Equal, Less, and Hash function objects for MEdge and MEdge*

use MVertex::distance + better check in writePOS

fix namespace clashes with CGNS headers (patch from sguzik@utias.utoronto.ca)

- second order nodes on geometry by default
- better min/max range computation for cut planes
- more work on fourierModel