Fix printing of zero-dimensional arrays, FS#1148.
(Thanks to Elias Pipping for testing the patch)

[[Imported from SVN: r6865]]

- update fvector test
(thanks to Matthias Wohlmuth)

[[Imported from SVN: r6863]]

- add dotproduct for basic data types
(thanks to Matthias Wohlmuth)

[[Imported from SVN: r6862]]

This fixes FS 1147.  Thanks to Elias Pipping for the patch.

[[Imported from SVN: r6819]]

Patch contributed by Matthias Wohlmuth

[[Imported from SVN: r6816]]

[[Imported from SVN: r6809]]

assignment.

[[Imported from SVN: r6802]]

[[Imported from SVN: r6801]]

[[Imported from SVN: r6798]]

dune-geometry.

[[Imported from SVN: r6796]]

[[Imported from SVN: r6795]]

mpitraits.hh forward declares std::pair, which is illegal by the standard, and clang stumbles over that.
Fixes FS#1121.
(Thanks to Steffen Müting for the patch)

[[Imported from SVN: r6791]]

With the exception of mpicollectivecommunication.hh
and propertymap.hh, which I didn't understand.

[[Imported from SVN: r6784]]

[[Imported from SVN: r6774]]

according to the standard std::pair is a struct

[[Imported from SVN: r6727]]

No clue what that patch was supposed to due,
but it even slipped into dune 2.1.

[[Imported from SVN: r6716]]

Backported from Martin's development branch.

[[Imported from SVN: r6713]]

Backported from Martin's development branch,
minus some whitespace changes.  Thanks.

[[Imported from SVN: r6712]]

[[Imported from SVN: r6709]]

[[Imported from SVN: r6705]]

[[Imported from SVN: r6683]]

[[Imported from SVN: r6682]]

It is not standard conforming.

This file must have missed when deleting th backwards compatible code.

[[Imported from SVN: r6681]]

This patch removes the constructor from the overload set.
Before the constructor was there but failed to compile
due to the static assertion.

If you have methods f(K) and f(FieldVector<K,n>) with
n>1 the overload was ambigous when calling f() with
a FieldVector<K,1> because there is a conversion
from this to FieldVector<K,n> - even if it does not
compile due to the failing static assertion.

Now this is avoided using SFINAE. This fixes fs#1024. 

[[Imported from SVN: r6680]]

[[Imported from SVN: r6678]]

[[Imported from SVN: r6677]]

[[Imported from SVN: r6659]]

Only standard-conforming methods are supported from now on.


[[Imported from SVN: r6658]]

It is not standard conforming.

[[Imported from SVN: r6657]]

This is part of FS 787

[[Imported from SVN: r6649]]

[[Imported from SVN: r6648]]

a) it appears overly complicated.  Why not just use '=='?
b) it is never used anyway

[[Imported from SVN: r6647]]

[[Imported from SVN: r6646]]

so it matches the name of its source file.

[[Imported from SVN: r6645]]

warning.

[[Imported from SVN: r6631]]

[[Imported from SVN: r6630]]

[[Imported from SVN: r6629]]

[[Imported from SVN: r6628]]

[[Imported from SVN: r6617]]

[[Imported from SVN: r6608]]