[[Imported from SVN: r2994]]

[[Imported from SVN: r2993]]

[[Imported from SVN: r2992]]

necessary for adaptivity.

[[Imported from SVN: r2991]]

[[Imported from SVN: r2990]]

on id sets (either local or global) as keys.

[[Imported from SVN: r2989]]

Added an overloaded contains method that allows to check if the mapper provides
an index for an entity. This is mainly for the id set based mappers.

[[Imported from SVN: r2988]]

to albertagrid. This fixes task #33.

[[Imported from SVN: r2987]]

- UG's id was overwritten in vertices because it was used by leaf index
- IDs are now unique over all codims and levels by ORing codim
- Parallel case not tested
- Still: IDs are only implemented for codims 0 and dim. Edges and faces can be done
fairly easily but are not required for P1 elements :-)

[[Imported from SVN: r2986]]

[[Imported from SVN: r2985]]

[[Imported from SVN: r2984]]

[[Imported from SVN: r2983]]

[[Imported from SVN: r2982]]

[[Imported from SVN: r2981]]

[[Imported from SVN: r2980]]

[[Imported from SVN: r2979]]

[[Imported from SVN: r2978]]

[[Imported from SVN: r2977]]

Implemented neighbor access correctly to get lower level leaf in case
of locally refined meshes.

[[Imported from SVN: r2976]]

[[Imported from SVN: r2975]]

[[Imported from SVN: r2974]]

This ensures that codim 1 and dim-1 indices are correct also on locally refined meshes.
Further: face renumbering for _all_ element types, also in 2D

[[Imported from SVN: r2973]]

[[Imported from SVN: r2972]]

in local coordinates.

[[Imported from SVN: r2971]]

to refine all elements of a locally refined mesh.

[[Imported from SVN: r2970]]

Implemented assignment operator in AlbertaGridEntityPointer (hope its correct?).

[[Imported from SVN: r2969]]

ALUGrid specialists: Please provide a better implementation if there is one.

[[Imported from SVN: r2968]]

[[Imported from SVN: r2967]]

[[Imported from SVN: r2966]]

[[Imported from SVN: r2965]]

as either homogeneous Neumann or Dirichlet

[[Imported from SVN: r2964]]

[[Imported from SVN: r2963]]

[[Imported from SVN: r2962]]

[[Imported from SVN: r2961]]

[[Imported from SVN: r2960]]

[[Imported from SVN: r2959]]

[[Imported from SVN: r2958]]

[[Imported from SVN: r2957]]

[[Imported from SVN: r2956]]

[[Imported from SVN: r2955]]