Inline commenting on *.list files

[michihdeu]

tm.teresco.org/forum/index.php?topic=1820

IL I-90 WI/IL I-294 #NW Tollway should be supported

[ssoworld]

Low priority - see forum topic for why.

[jteresco]

Now supported. Valid comments are now full-line ones (whole line starts with '#') or lines with 4 fields followed by a space followed by one or more additional fields, the first of which (and 5th on the line) must start with '#'.