[[Imported from SVN: r3621]]

missing.

[[Imported from SVN: r3620]]

[[Imported from SVN: r3619]]

[[Imported from SVN: r3618]]

[[Imported from SVN: r3617]]

[[Imported from SVN: r3616]]

[[Imported from SVN: r3615]]

- provides sum/product/min/max for any value type with operator+, operator* and operator <
  in a generic way using MPI Operators ans MPI data types. Really nice :-)
- Default version provides dummy communication functions. Can be used to
  make sequential versions compile without MPI
- It would be possible to include also point to point communication to have
  a nice way to avoid including mpi.h everywhere.

[[Imported from SVN: r3614]]

[[Imported from SVN: r3613]]

[[Imported from SVN: r3612]]

[[Imported from SVN: r3611]]

[[Imported from SVN: r3610]]

[[Imported from SVN: r3609]]

[[Imported from SVN: r3608]]

- add an Indent object to the lib.. this os only needed for debugging
  and will be removed in the future

[[Imported from SVN: r3607]]

[[Imported from SVN: r3606]]

[[Imported from SVN: r3605]]

[[Imported from SVN: r3604]]

[[Imported from SVN: r3603]]

Now Entries of a BlockVector can be communicated.

[[Imported from SVN: r3602]]

[[Imported from SVN: r3601]]

[[Imported from SVN: r3600]]

grid.

[[Imported from SVN: r3599]]

- grid exports communicator and rank -> later I will file an extension of the grid interface
- implemented overlapSize and ghostSize

[[Imported from SVN: r3598]]

[[Imported from SVN: r3597]]

[[Imported from SVN: r3596]]

level as template parameter. Defaults to 1, so nothing needs to be changed in
existing code.

[[Imported from SVN: r3595]]

[[Imported from SVN: r3594]]

expression templates

[[Imported from SVN: r3593]]

[[Imported from SVN: r3592]]

[[Imported from SVN: r3591]]

[[Imported from SVN: r3590]]

[[Imported from SVN: r3589]]

[[Imported from SVN: r3588]]

[[Imported from SVN: r3587]]

[[Imported from SVN: r3586]]

[[Imported from SVN: r3585]]

[[Imported from SVN: r3584]]

[[Imported from SVN: r3583]]

[[Imported from SVN: r3582]]