Structured grids can be defined (since dumux 2.8 / dune 2.4)
via the input file like follows:

[Grid]
LowerLeft = 0 0 0
UpperRight = 4 5 6
Cells = 2 2 6
CellType = Simplex
Refinement = 1         # optional

Note that Simplex is only available for grids supporting simplices.
For multidomain applications the property GridParameterGroup can be
set in each sub problem if you need to define different grids for
the subdomains in the same input file.

DGF
The new default gridcreator (since dumux 2.8) has the
identical functionality with identical interface. Just specify

[Grid]
File = bla.dgf

Feature/valgrind with cmake



See merge request !43

[bugfix] Make test require executable

The test falsely required an executable with the name of the test
instead of the name of the executable. As the comment correctly states
the test needs the executable to run not a test target..

See merge request !45

The test falsely required an executable with the name of the test
instead of the name of the executable. As the comment correctly states
the test needs the executable to run not a test target..

Feature/pointsources rebased

Implements a point source feature.

Source terms can be implemented as point sources in the problem file.
A point source is a new class that stores point coordinates and a values PrimaryVariable vector
with a source value for each equation.
Point sources can also be solution dependent. For that the user adds a point source at
the wished location with values 0.0. Then in the method solDependentPointSource() one
gets all point sources associated with the DOF that the method is called for and can
add to their values, values dependent on the current solution.
The user specifies the source in kg/s (very convenient!).

* [x] Move point source calculation from implicit problem to a helper function
* [x] Make PointSource a Dumux property so people can use cutomized point source classes derived from a base class
* [x] Consider extrusion for dim < 3 when calculating the volume

* [x] Implement TimeDependentPointSource?
* [x] Make it work for adaptive grids
* [x] Implement PointSource constructor without value (for solDependentSources), the value is then set in solDependentPointSources.

This branch has been rebased recently onto master.

See merge request !36

Undefined preprocessor variables are set to 0 by default
according to the C++ standard.

Re-enable Valgrind support which was accidentally dropped together
with the Autotool's build system.

The bounding box tree uses the grid's index set as it is only concerned
with elements no matter which discretization. We have to therefore use
the gridview's indexset to access the point source map in the problem.

Added phaseIdx to VolVars functions such that
it is consistent with other models.

Reviewed by Bernd

* Implement problem interface functions mimicking the normal source interface
* Implement a possibility to implement derived point source classes getting cutomized lambda functions
	* the pointsource class gets an update method
        * An example implementation with test for time dependent point sources is implemented
* Restructure the point source class. Do not derive from PrimaryVariables (less felxible) instead overload
  some operators for convenience
* Call the solDependentPointSource function for each point source not per dof (multiple ps possible)
* Recompute the map for adapted grids

[multidomain] Simplify boundary types for Darcy subdomain

* Remove unused types
* Remove superfluous semicolons after methods

See merge request !42

* Remove unused types
* Remove superfluous semicolons after methods

[multidomain,non-isothermal] Fix bug of unintentionally removed globalPos variable.

Thank gruenich for the heads-up.

See merge request !41

Thank gruenich for the heads-up.

[doxygen] Add target only if doxygen was found

The dune macro used to add the target only adds it if doxygen was found.
Then the target was not know in add_custom_command which is an error
in CMake > v3.2.

See merge request !40

The dune macro used to add the target only adds it if doxygen was found.
Then the target was not know in add_custom_command which is an error
in CMake > v3.2.

Feature/doxyref



See merge request !39

We can't change the class in a const function. The non-const
version however, constructs the boundingbox tree on call if it
hasn't been build yet.

Cleanup/multidomain

One try to cleanup, unify, and purge the multidomain models by:
 - removing duplicate code
 - avoiding unnecessary subfunctions
 - consistent procedure in isothermal and non-isothermal models
 - adding warnings for undesired use (e.g. useMoles, not defined BC)
 - speed up the tests

See merge request !38

[multidomain] Various small cleanups, remove unnecessary/potentially buggy lines of code, add useMoles.

Note: this leads to a change how to set boundary conditions for the momentum balance. Inflow now becomes Dirichlet and Outflow becomes Neumann. This is consistent with the new notation.

The computeSource method is identical for most local residual
with very few exceptions. There the new ParentType method can
be called. This also makes point sources available for all
implicit model (was previously only available for 1p models)