replace min() to lowest() in Gui
replace min() with epsilon() in Gui
replace min() with epsilon() in FileIO
replace min() with epsilon() in GeoLib
replace min() with lowest() in MeshLib
replace min() with epsilon() in MeshLib
replace min() with epsilon() in Testd
revert change in TestPoint.cpp

min() is intentionally used here.
use 0 instead of lowest() as the minimum possible number for non-negative quantities, e.g. length
[GeoLib] Substite sqrt(epsilon) with epsilon.
[GeoLib] Substite sqrt(epsilon) with pow(epsilon,2).
Using epsilon() instead of min() in parallel() impl.
Using epsilon() instead of min() in pointsOnAPlane() impl.
First part for the new tool.
Initial commit convertPolylineToVerticalPolygon.

The tool was transfered from OGS-5 to OGS-6. It is useful only for layered meshes.
Using TCLAP for parsing command line args.
Using logog logging in convertPolylineToVerticalPolygon.
Experimenting with search length.
Added convertPolylineToVerticalPolygon to qt-sect.

Added convertPolylineToVerticalPolygon to qt-section to use xml functionality.
Generating the surface and write it as xml out.