Conflicts:
	Core/Core.pro
	Examples/Performance/perf_history.txt
	Fit/Fit.pro

  (typedef Geometry::BasicVector3D<int> IndexVector3D
   now in ISelectionRule.h).
Class description for SimpleSelectionRule.

Forbid shorthand a*b, request a.dot(b) or dotProduct(a,b).
Remove "virtual" from ~BasicVector3D.
Provide templated implementation for almost all methods,
  resolving issue #237.

Conflicts:
	Fit/Fit.pro

Repair Python compilation by restoring default constructor in HomogeneousMaterial.h

Standard doxygen comments

more work on class and method comments

Removed instance() from python functional tests; ISingleton and MaterialManager are (probably) thread safe now

Emptied Coordinate3D.h:
   only use typedef Geometry::BasicVector3D<int> IndexVector3D;

Outcomment Python compilation.
Work on layout while studying code.

to replace Coordinate3D<int>

(was mathematically incorrect).
Change order of compilation: basics first.