Ray command doesn't interpret .rel file with inequality symbols

[bgillesp]

Small issue I encountered: the "ray" command as of version 1.6.9 does not properly interpret a ".rel" file which uses the symbols "<", ">" and "=" rather than corresponding integers "-1", "1" and "0". Example project files with the two different formats for the .rel file are attached, as well as output after calling the ray command for the projects.

bug-examples.zip