********************
Version_[12_04_2008]
********************

- new RESAMPLE directory containing files to create the new libresample.a library
  update tarngo.sh accordingly
- create_surface modified so that particles are stored in a given order
- move_surface modified to implement re-interpolation of convex hull ptcles with constant spacing
- slices, and visualise_matrix rewritten with PGPLOT routines (up to 20 times faster, files 7 times smaller)
- fixde little bug in second move_surface call

********************
Version_[08_04_2008]
********************

Major update
- binary output files (changes to DOUAR and post): leads to much more compact output files; can be transferred to and from old ascii format using the a2b.f90 and b2a.f90 converters in VTK
- new parameters : 
(1) calculate_temp (allows to switch off the temperature calculations)
(2) strain softening parameters in MC and DPI/II rheologies
(3) viscositymin/viscositymax: hardwired minb/max limits on the viscosity
(4) stretch, anglemax, criterion, anglemaxoctree have become surface parameters (i.e. they have a specific value for each surface)
(5) spread_surface_points : to "spread" the points on the top surface (or any surface) to avoid collapse of the cascade mesh
(6) erosion parameters : length-scale and velocity_scale (values in km and km/Myr of the unit length and unit velocity), fluvial_erosion and diffusion_erosion (values of the two erosion coefficient in per m2 and m2/yr), baselevelx0,x1,y0,y1 to specify whether each of the four boundaries corresponds to a baselevel (fixed height)
- coupling with cascade
- strain softening (using the strain carried by the particles)
- modifications to post.f90 to produce, among other things a "regular.vtk" file that has the strain and velocity informatyion on a regular grid, allowing for display of the strain tensor glyphs
- post.f90 also produces rivers.vtk for channel geometry
- post.f90 changed to include erosion rate as  field on the top surface (this field is stored in the "r" field of the surface; in this way the shape of the output files has not changed)
- various bug fixes

23_Feb_2007
 - new modules : definitions and DoRuRe

22_Feb_2007
 - replaced merge_to_large_octree and calculate_octree by embed_surface_in_octree
 - new Makefiles

21_Feb_2007
 - in make_matrix, incorporated new routine vrm