Changed ALU3dGridFaceInfo to handle new ReferenceElements -> got rid of GridImp template parameter so that the physical dependencies could be reduced

[[Imported from SVN: r2436]]

[[Imported from SVN: r2435]]

All should run through now!

[[Imported from SVN: r2434]]

Instead of specifying all of them for all class using IndexSet, those
class now have the index set type as a template parameters.

[[Imported from SVN: r2433]]

Renamed cube in ReferenceCubeContainer to cube_, otherwise I have a name clash with GeometryType cube; did some indentation as well

[[Imported from SVN: r2432]]

[[Imported from SVN: r2431]]

[[Imported from SVN: r2430]]

[[Imported from SVN: r2429]]

[[Imported from SVN: r2428]]

[[Imported from SVN: r2427]]

[[Imported from SVN: r2426]]

[[Imported from SVN: r2425]]

[[Imported from SVN: r2424]]

[[Imported from SVN: r2423]]

[[Imported from SVN: r2422]]

[[Imported from SVN: r2421]]

[[Imported from SVN: r2420]]

Added leaf{begin,end} with no level arguments (methods with level arguments shall be removed later to allow for an easy transition)

[[Imported from SVN: r2419]]

[[Imported from SVN: r2418]]

[[Imported from SVN: r2417]]

[[Imported from SVN: r2416]]

[[Imported from SVN: r2415]]

[[Imported from SVN: r2414]]

[[Imported from SVN: r2413]]

  with the default compiler and the flags extracted from the different
  mpicc-scripts. If it fails a warning is emitted and MPI deactivated

  fixes bug #23

- added theoretical support for GCC with IBM MPI: the options (which
  are tailored toward xlc) are changed a bit. However the following
  problem remains: ./configure adapts the test programs to the
  C++ compiler it find. Thus, a test program passed to mpCC fails
  because the implicitly used xlC doesn't understand the line meant
  for g++... Maybe this (and a whole lot of other problems) just
  vanish if xlc 7.0 is used so I'll do nothing about it

[[Imported from SVN: r2412]]

compile time error if (dim!=3) for prism and pyramid

[[Imported from SVN: r2411]]

[[Imported from SVN: r2410]]

[[Imported from SVN: r2409]]

[[Imported from SVN: r2408]]

[[Imported from SVN: r2407]]

[[Imported from SVN: r2406]]

[[Imported from SVN: r2405]]

[[Imported from SVN: r2404]]

[[Imported from SVN: r2403]]

[[Imported from SVN: r2402]]

ax_check_gl.m4)

[[Imported from SVN: r2401]]

[[Imported from SVN: r2400]]

[[Imported from SVN: r2399]]

[[Imported from SVN: r2398]]

[[Imported from SVN: r2397]]