Parser tolerates station names containing #, in contradiction to Walls Manual

[jedwards1211]

According to the walls manual,

Unprefixed names can have a maximum of eight characters and must not contain any colons, semicolons, commas, pound signs (#), or embedded tabs or spaces.

However, the following survey data compiles just fine:

a	<1	5	90	30	*3 4 5 6*
<1,1#,10,180,0,(*,*),<4,5,6,3,100,1000>
1#,2#,5,270,0