GitLab

Reason: using --unicode-literals everywhere is not a good approach.

This reverts commit 323836e9.

futurize --stage1 --unicode-literals `echo $(find -name "*.py*") ./core/main/yade-batch.in ./core/main/yade-oar.in`

Such constructions in python files are failing when
vectorization is on. Probably because Identity construction
does not return real object (?)

- Creation of KinemSimpleShearBox, new class containing the features common to the various Kinem...Engines, and from which these Engines inherit now. 

- Replace of Quaternion().IDENTITY by Quaternion.Identity in /scripts/test/gts-random-pack-obb.py (it let crash the script)

- Reference-typo in the doc of Triaxial Test in _extraDocs.py

Workaround bug #416335; static members of Vector3 work only on instance, e.g. Vector3.ZERO will not work, you have to use Vector3().ZERO; changed all occurences in the code accordingly, update your scripts as well.\n2.Some undocumented and untested enhancements for parameter table (backwards compatible)

1. PeriIsoCompressor: add keepProportions parameter (on by default), decrease global updates interval.
2. Omega: startSimulationLoop warns if there is no simulationLoop (how can that happen? It somehow can)
3. SpherePack: resets periodicity (and warns) if being rotated; cellSize is writable now.
4. pack.triaxialPack: renamed to pack.randomDensePack; fix loads of stuff in that; rename radiusStDev parameter to rRelFuzz; add epydoc documentation; fix erroneous detection of inGtsSurface being defined
5. wrapper: lock renderer when adding list of bodies; Omega().resetThisWorld to reset current world only.
6. Fix scripts/test/{gts-random-pack.py,gts-random-obb.py}

1. Do not use REGISTER_ATTRIBUTE anymore, use REGISTER_ATTRIBUTES instead everywhere. This generates (in addition to serialization code) also some python code and makes python independent on the yade serialization framework (Janek, if you want to try boost::serialization, I have no objections now).

	Please check your code that it works. I was moving attribute registration to .hpp files and hopefully nothing broke. Sorry for inconvenience.

2. As said, python is now completely independent of serialization and passes value not by strings, but by real variables, doing appropriate conversions thanks to boost::python magic. This should make it also faster and much more robust.
3. Custom coverters handle vector<int>, vector<Vector3r>, vector<Real>, vector<string> and other can be added easily.
4. All fundamental types are converted automatically.
5. Add conversions for se3 as tuple of Vector3,Quaternion
6. Add non-standard boost::python indexing suite version 2 to our code (although it is not used ATM).