[cmake] adds find eigen script from my distribution so i can revert the last revert
Revert "Revert "[cmake] change Eigen discovery""

This reverts commit 2e8a29f9f02fae28920147e17fc0406a57ca8524
and should work now since we're shipping the FindEigen3
script that's apparently missing from some current
cmake distributions
[autotools] fixed #6
[grid.provider.cube] added grid_ptr()
Merge branch 'master' into issue_282_configcontainer
[test] moved test_main
[grid.provider.default] deprecate misleading ctors

refs #7
[common.memory] added first draft of StorageProvider

refs #7
[grid.provider.default] fixes #7
[common.color] added terminal sensitive color output
[configuration] trigger std::string conversion for char* defaults
[tests] use/include common main function
fixup a couple more deprecated usages
[configuration] constness
[common.color] fix wrong string/char* comparison
[common.configuration] whitespace
[common.configuration] do not print empty requests
Merge branch 'master' of https://github.com/wwu-numerik/dune-stuff

Conflicts:
	dune/stuff/test/common_color.cc
	dune/stuff/test/common_configuration.cc
	dune/stuff/test/common_fixed_map.cc
	dune/stuff/test/common_math.cc
	dune/stuff/test/common_profiler.cc
	dune/stuff/test/common_ranges.cc
	dune/stuff/test/common_string.cc
	dune/stuff/test/common_tuple.cc
	dune/stuff/test/common_typenames.cc
	dune/stuff/test/common_validation.cc
	dune/stuff/test/fem_error.cc
	dune/stuff/test/functions_checkerboard.cc
	dune/stuff/test/functions_constant.cc
	dune/stuff/test/functions_expression.cc
	dune/stuff/test/functions_functions.cc
	dune/stuff/test/functions_global.cc
	dune/stuff/test/grid_information.cc
	dune/stuff/test/grid_output_pgf.cc
	dune/stuff/test/grid_provider.cc
	dune/stuff/test/la_container.cc
	dune/stuff/test/la_solver.cc
[test.common_logger] include main
[test.test_common] remove include