[common.configtree] made ctor explicit
[common.disable_warnings] ignore -Wdeprecated-register
[common.logging] fix dune-common 2.3 include
guard eigen includes to get rid of some warnings
[la.solver] expose static SolverUtils::check_given() method
[la.container.interfaces] use Tags namespace
replaced ifdef by if
[cmake] add dune-grid related guard
[mailmap]
[license] added header
[mailmap]
[license] removed deprecated license information
[common.threadmanager] update include path
[la.container.common] removed dune-pymor forwards and friends
[functions.default] fixed strange character occurence
Merge remote-tracking branch 'official/master'

Conflicts:
	dune/stuff/la/container/common.hh