fixes a few shadow  warnings
Merge branch 'master' of https://github.com/wwu-numerik/dune-stuff into ConfigContainerTree

Conflicts:
	dune/stuff/grid/provider/default.hh
[comon] fixes exception hierarchy in ConfigTree
[grid] fixes the cube provider
[cmake] re-include other dune-module headers with -isystem
Merge remote-tracking branch 'tobias/master'

Conflicts:
	dune/stuff/grid/provider/default.hh
[cmake] isystem magic was in wrong if branch
[grid] refix cube provider ctor
[tests] included truncate_vector in common header to remove duplication
[common.string] make toString and fromString work with container types
- use the Choose trick from ConfigTree to make fromString< S > work for
S container type
- add more specializations of toString to make toString(...) work for
container types
[test.common_string] add some tests for fromString/toString
some fixes to make dune work locally for me
Merge branch 'master' of https://github.com/wwu-numerik/dune-stuff into ConfigContainerTree
[tests] disables common_fixed_map since it reliably goes OOM
[grid:output.pgf] fix for compilation failure
[test.grid_information] fix deprecated message
[test.la_container] small fix
[grid] another re-fix for cube provider
[functions] disabled explicit instantiations everywhere

this requires fixing by @ftalbrecht
fixes headercheck