[spaces.cg.pdelab] fixed closing comment
fixes 7cfe517eacafd5d366959d9f674cd8e56d951eac
[operators.projection] added block space
Merge remote-tracking branch 'origin/master' into less_shared_ptr

Conflicts:
	dune/gdt/operators/projections.hh
[localoperator.codim0] remove obsolete ctors, add safe integer conversion
[localoperator.codim1] added over_integrate
[localevaluation.swipdg] updated warnings, docu and default_beta()
[localevaluation.swipdg] update warnings, remove obsolete evaluate()
[products.base] whitespace
[localevaluation.swipdg] added first draft of penalty-only evaluations
[prodcuts.elliptic-swipdg] added first draft of EllipticSWIPDGPenalty