little modifications of ConcretePM
Make the bug LP:1087680 visible again.
fix syntax error in a doc string (blocking the buildbot https://yade-dem.org/buildbot/builders/yade-full/builds/1741/steps/shell_3/logs/stdio)
Fix segmentation fault in bodyNumInteractionsHistogram.

(Closes: LP:1087680)
Return back the opportunity to keep all interaction pointers for each body
Use interaction pointers in body class instead of iteration over all interactions in body::py_intrs.
Improvements in clump logic - part 3 + 4.

-> part 3: new class clumpTemplate in py/utils.py
   make it possible to create clump templates (python objects)

-> part 4: new method replaceByClumps() in py/wrapper/yadeWrapper.cpp
   replace spheres by clumps using a list of templates and a list of amounts

-> small bug fix in calm() method: now clumps will also be calmed

-> added new example script, that shows usage of clumpTemplate and replaceByClumps()

Thank you all for your help!

https://github.com/yade/trunk/pull/31
Add visualisation to Jakob`s scripts.
shorten the code of replaceByClumps()
add a check of python input for replaceByClumps() method
further improvements in clump logic
modification of ConcretePM, improved utils.intrsOfEachBody function
Merge pull request #32 from jakob-ifgt/master

Updates in clumps.
some fixes in documentation of wrapper and state
improved yade executable: optparse->argparse, yade executable is now loadable as python module
Merge pull request #33 from jakob-ifgt/master

some fixes in doc
-deprecation warnings in ThreeD and TriaxialCompression engines
-change the default value of FlowEngine::pressureForce, a flow engine is supposed to compute a flow by default...
smallfix in example script
- 3 new references