[[Imported from SVN: r826]]

[[Imported from SVN: r823]]

[[Imported from SVN: r822]]

[[Imported from SVN: r821]]

[[Imported from SVN: r820]]

Introduced utility class for AMG smoothing. Using it it will be
possible to keep AMG symmetric even for Multiplicative Smoothers.

[[Imported from SVN: r819]]

removed some compiler warnings.

[[Imported from SVN: r818]]

The smoother arguments need an aditional entry as the aggregates are
needed for overlapping schwarz.

[[Imported from SVN: r817]]

OverlappingSchwarz has an additional template parameter now.

[[Imported from SVN: r816]]

[[Imported from SVN: r815]]

[[Imported from SVN: r814]]

[[Imported from SVN: r813]]

[[Imported from SVN: r812]]

[[Imported from SVN: r811]]

THis is intended to be used in AMG. Unfortunately this needs some more
work, which I will postpone to next week (after my holiday).

[[Imported from SVN: r810]]

[[Imported from SVN: r808]]

[[Imported from SVN: r805]]

[[Imported from SVN: r802]]

[[Imported from SVN: r801]]

[[Imported from SVN: r800]]

[[Imported from SVN: r799]]

[[Imported from SVN: r798]]

Works for dense blocks with n>1, m>1 now.

[[Imported from SVN: r797]]

[[Imported from SVN: r796]]

[[Imported from SVN: r794]]

[[Imported from SVN: r793]]

[[Imported from SVN: r792]]

Damn it! Nil or _NullClass does not exist in TR1 standard.

Andreas: Your right, the change to the standard is cumbersome!

[[Imported from SVN: r791]]

Adjusted to new tuple interface (still uses the old names though!).

[[Imported from SVN: r790]]

[[Imported from SVN: r789]]

[[Imported from SVN: r788]]

[[Imported from SVN: r787]]

This is still a preliminary version which needs further testing.

[[Imported from SVN: r786]]

[[Imported from SVN: r785]]

[[Imported from SVN: r784]]

[[Imported from SVN: r783]]

The trick is to test for doc/doxygen/Doxydep which is only there in
the svn tree!

[[Imported from SVN: r780]]

[[Imported from SVN: r777]]

[[Imported from SVN: r775]]

[[Imported from SVN: r774]]