[LICENSE] added
* we still need to decide if we want to have project wide
  copyright holders (if yes, who?) or per-file
[README] replaced stock dune one
* copyright decision still open
[common.exceptions] added functionality from dune-pymor
* there is now DUNE_THROW_COLORFULLY :)
[common.crtp] added from dune-pymor
* this defines CHECK_CRTP and CHECK_AND_CALL_CRTP
  (has still to be made threadsafe perhaps?)
* defines CRTPInterface
[autotools] add DUNE_STUFF_SSIZE_T
[la.contianer.interface] major rewrite
* merge the Interfaces from dune-stuff and dune-pymor
* untested
[la.container.interface] another updated to MatrixInterface
* added methods to clear cols/rows
* still untested
[la.container.eigen] major revamp
* merged the functionality from dune-pymor
* implemented COW for all containers
* still untested
[common.crtp] removed static
[la.container.interface] fixes
* add old methods and mark them as deprecated
* added missing virtual
* added missing protected
* added header
[la.container.eigen] tests from dune-gdt run
* added header
* fixed a lot of things
[la.solver] updated due to new containers
* mainly ElementType -> ScalarType
[common.vector] updated due to new containers
[la.container.interface] added virtual dtors
[cmake] define DUNE_STUFF_SSIZE_T
[common.crtp] make it threadsafe
* according to Rene
moved la/container/interface{,s}.hh
[common.crtp] made as_imp() static
[la.container.interfaces] removed obsolete typedef
[la.container.eigen] updated
* added missing virtual
* allow opearators to access the backend