changes:
Several minor bug corrections (1.0.5).
Further improvements for grids in the upcoming graphical mode (1.0.5).
Added and improved still imperfect svmono , svjour , elsart and ifac
styles (1.0.4.7).
Added a plug-in for DraTeX (1.0.4.7).
Updated and improved Maxima plug-in for upcoming version 5.9.2 of
Maxima (1.0.4.7).
Further improvements for grids in the upcoming graphical mode (1.0.4.7).
being here, fix maxima detection
