Removed unused attribute FEMCondition::CondType _type.
Read/process xml tag distribution of fem condition definition.
First version of BoostXmlCndInterface::write().
Added implementation to read BoundaryCondition.
Using std::string instead of QString for file name.

Wrapps readFile(QString).
[2dGWFlow] Add test program body that includes reading of mesh and geo.
[2dGWF] Added comments.
Removed definition of 'int XmlGmlInterface::readFile(std::string const&)'.
First test for reading FEM condition.
Changed signature of virtual Writer::write().
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