GitLab

Fixed svd for bcgstab(l);
Transposed matvec;
Interfaces for collective operations for Mesh class.

Pseudoinverse for polynomial matrix in bicgstab(l) to improve stability
(as in petsc);
Added RowMerger class for sum of sparse rows.

Synchronizing various changes

Made database file case insensitive.
Tinkered dropping rules in INNER_MLILUC.
Added rule for git to ignore svn presence.
Added google analytics pixel to main page.

Replaced russian comments in doxygen.
Examples with OpenGL would not lead to error in cmake if no library is
found.

Fixed incorrect writing of sets data.
Returned ||Ax-b|| norm to solver.

Changed default parameters.
Fixed bug for trilinos-aztec, when non-converged solution was accepted.
Enchanced dropping rules in INNER_MLILUC solver.

fixes for issue #1

Fixes for gcc and intel compilers.
gcc-4.1 clean with -Wall -Wextra
intel 11.1 clean with -Wcheck -w1
msvc2010 gives one unrelated warning

Huge update involving update of underlying data representation and
elements management. Different interaction with iterators. New
ElementSet representation.  Some annotation for documentation is added.
New data structures. Examples require update. (check
examples/CMakeLists.txt)

Fix few compile warnings and a small bug in Element::Mean.

Fix crush - not properly freeing communicators.

some changes