Add export.gmshGeo function to export spheres into GMSH native format.
Add publication in russian journal.
fix bug in replaceByClumps(), make it compatible with facets
Merge branch 'master' of github.com:/yade/trunk
undo unwanted changes in kdev4 files from previous commit
- small fix in the way TriaxialStressController defines meanStress
A more precise integration of contact forces in periodic deformations, using period size of the previous step for the relative velocity update
+ cache a (matrix x matrix)  product for performance (previously re-computed for each other interaction)
- fix a small bug in the determination of the mean stress (TriaxialStressController)
- a more flexible implementation of density scaling
-get back gravitational wotk in NewtonIntegrator (removed by mistake in previous commit, sorry)
- reflect (1) in regression tests, since they were expecting innacurate values, cell size change only in the next step after velGrad assignment.
(1) https://github.com/yade/trunk/commit/422ecb00c710337ede7ace6ae62f8f857c6e975a
- small fix in doc hyperlinks
Improvements in clump logic - part 5: added Monte-Carlo-algorithm for estimation of clump volumes called getClumpVolume(), added a new method for getting roundness coefficient called getRoundness(), updated examples/clumps/replaceByClumps-example.py
Improvements in clump logic - part 6: added new method adaptClumpMasses(), added examples/clumps/adaptClumpMasses-example.py
Improvements in clump logic - part 6: added examples/clumps/adaptClumpMasses-example.py
small improvement of getClumpVolume() in yadeWrapper.cpp
use deterministic instead of random algorithm for getClumpVolume(), adapt examples/clumps/adaptClumpMasses-example.py, improve and fix documentation
Use standard GNU paths for install targets.
add info about h-key for yade view in start banner
Merge branch 'master' of github.com:yade/trunk