Remove unnecessary includes, one warning less.
[cleanup] don't include unused headers misc.hh and geometrytraits.hh
[bugfix,documentation] spelling
[Cleanup] Remove useless static qualifier from local variable
[Buildsystem] Mark singleton accessor methods with DUNE_EXPORT

This should resolve hard-to-trace link and runtime problems on a
number of developer systems that are related to the linker failing to
merge multiple copies of static data from different DSOs.
[documentation] Minor documentation improvements
Properly implement the delivered order of a 0d quadrature rule
Fix copy'n'paste bug in Emacs settings section
[documentation] Answer a question concerning quad rule orders and the Duffy transformation

If you construct simplex quadrature rules by tensor multiplication and the
Duffy transformation, an additional term (1-z)^{n-1} shows up.  To properly
capture this term, you either need Gauss-Legendre rules of higher order,
or you interpret the term as a weight function as use Gauss-Jacobi quadrature.
[bugfix,documentation] fix typo
Merge branch 'master' of http://git.dune-project.org/repositories/dune-geometry
Rename class GenericQuadratureRule to TensorProductQuadratureRule

That is a better name, because it matches better the names used in
the literature.

The class is an internal class so this patch is not an API change.
[documentation] improve a comment
Rename file 'genericquadrature.hh' to 'tensorproductquadrature.hh'

Again, this better matches what is used in the literature.
Adjust name of single-inclusion macro to new file name
Improve the documentation
Rename internal methods

* new names are more telling
* new names follow Dune style rules
Remove the Invalid_Rule enum value

Because nobody knows what it is good for, see FS 1387.
[cmake] Renamed header in CMakeLists.txt according to name change in commit0fc1c7a
Deprecated the exported type/constant 'CoordType' and 'd'

They are redundant: the same information is exported as 'Field' and 'dimension'.

See FS 1383