Sharan

Excellmedia mirror is really slow for downloads

update the documentation related to overlaps_tool with gifs; Add overlaps_tool entry in toc.html

update the documentation related to overlap_tool; add some screenshots

fix indentation for overlap_tool.xml doc file

change the way checker tool is executed -- previously it was called with a public proc named check, calls to which was blocked due libged's check command

add some comments in libanalyze/api.c

whitespace fix and add comments to libanalyze/check_options.c

add public function to get the grid_spacing when the raytracing stopped -- to print summary