[linearelliptic.discretizations.base] minor fix
[autotools] fixed Makefile.am
removed linearelliptic.discretizations.fv-with-dune-pdelab
removed linearelliptic.discretizations.multiscale...
[linearelliptic.discretizations.block-swipdg] use old working code

Using the code from the private AO2013 branch the coupling assembly seems
to work now. Of coarse, a lot of unnedded grid walks, copying, etc is done.
[linearelliptic.discretizations.base] provide container access

And initialize the containers in the constructor.
[linearelliptic.discretizations] no need to initialize the containers
[examples.linearelliptic.block-swipdg] white space
[linearelliptic.discretizations.block-swipdg] Enable parametric problems

* Use a generic copy_local_to_global_...() method to handle parametric
  containers.
* Update exceptions
* Add diffusion tensor