1) In Views menu the check button item "Extended view commands" has been added. Pressing on it shows/hides the set of buttons in the main window that allow manipulating of view zoom/pan/rotate by mouse.
2) New category of commands "Vector and measurement Commands" has been added. The commands in this category allow simple calculations using 2D and 3D vectors, such as cross and dot products, computation of distances of points to other objects, and other functions.
3) The new command "pickf" has been added in "DRAW Variables management" category. It allows extracting a picked with mouse face included in some shape as a new variable.
4) New commands "del" and "era" have been added in "DRAW Variables management" category. They allow deleting (destructing) or erasing (from view) variables matched by glob pattern.
5) Missing help for some commands like "don", "disp" and others has been added.
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
