Ezigrade 4.0.1.138

Problem importing levelguide path file in the northern hemisphere. Now fixed.

CDS 3.0.0.49

 Points that had been marked as "design height in combined" were not being displayed in the plan view.

Importing LandXML. The survey option could fail.

Ezigrade 4.0.1.133

 Tweaks to avoid infeasible solutions could make things worse! Did some further tweaks and untweaks.

Ezigrade 4.0.1.132

 Have fixed the numbering scheme so it corresponds to the version of Ezigrade.

Tweaked some of the parameters used when doing triangles based grading to reduce occurrences of infeasible solutions.