Do not build Octree when opengl was not found.

Constant correctness for dense matrices.

Refinement into cube and sphere in AdaptiveMesh for specific tests with
MFD-ES

Restricted communication of geometrical parameters when exchanging
parts of the mesh between processors.

Added function MarkNormalOrientation to detect situation when ghost
faces are oriented opposite to shared face on owner processor.

Corrected MFD-ES to account for orientation at ghost faces and to flip
sign of normal velocity component on ghost faces when it is known to
differ on master face on owner processor.

Added test for MFD scheme as projection step for Navier-Stokes problem
with analytic solution of Ethier-Steinman

warning #858: type qualifier on return type is meaningless

Classes  AnnotationService, Vector, Row in inmost_sparse.h

Doxygen comments for Automatizator class.

Some additional features for Automatizator class: copy/assignment, list
tags, unregister tag.

Fix compilation issue with Octree example on newer gcc.

Fixes for mesh modification algorithms

A lib for general adaptive mesh

Fix errors when any of USE_AUTODIFF, USE_SOLVER, USE_MESH or
USE_PARTITIONER are disabled.

Consistent checks for presence of global ids and use of global ids in
communications between shared and ghost elements in parallel.

Simplified octree example without GUI.

thanks to Andrey @SilverLife

Algorithm for parallel mesh test to pass part of the mesh to the next
processor. Used to test issues in Octree example.

Made all algorithms for matrices abstract from matrix implementation.

Added few algorithms:
Solve - find A*X=B with A and B matrices
PseudoSolve - find X=A^+*B using singular value decomposition.
Kronecker product
operator / for B^{-1}*A
operator *= for in-place multiplication

Added ability to specify storage type for Matrix, allows for
Matrix<Storage::real,Storage::real_array> or
Matrix<Storage::var,Storage::var_array> to directly manipulate data
stored in the mesh.

Class SubMatrix with full matrix functionality to address and
manipulate some submatrix in original matrix.

Fully commented in doxygen inmost_dense.h.

Silence solver initializer when database file provided as “”.

Small fix for previous merge 

some improvements in *BIILU2 interfaces

Silence solvers complaints about parameters.

Updates for Tests/solver_test001

Disable TagVariable and TagVariableArray when USE_AUTODIFF is disabled.

Fixes for Octree example.