Remove .class and change classblink, adding the connected column.
Changing db and generate3Conn to get3Conn.
Changing db and generate3Conn to get3Conn.
Adding Generate LNK Files for snappy.
Small Changes.
3-connected
3-connected finished.
Fixing 3-connected and changing qi.
Added the option to save to PDF in black-and-white; now the user is prompted by a window before exporting, so that he can set some options and path. Note that for some images, the black-and-white option is ignored, since it's not supported. I feel like the modifications on [SavePDFContext] could be better organized.