Fixing working dir


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23028 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web] remove redundant code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23029 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
IntersectRegion[ <Plane>, <Polyhedron> ] : start

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23030 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Clear all traces doesn't remove the trace list but clear it (+ undo point).

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23031 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fixing HTML


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23032 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for #2980 [needs backport]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23033 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e