Change LOTW filtering behavior in CR

Roster was treating LOTW filtering as "advisory" if someone had
previously set LoTW filtering to "show me nothing older than 3 months"
they would still get older stations but with "?" -- this is inconsistent
with every other filter, and is annoying--a station that once uploaded
to LoTW 8 years ago shouldn't be considered a LoTW station. Fixes this.

package.nw/lib/roster.js

@@ -648,6 +648,15 @@ function viewRoster()
 				callRoster[callHash].tx = false;
 				continue;
 			}
+			if ( g_rosterSettings.maxLoTW < 27 )
+			{
+				var months = (g_day - window.opener.g_lotwCallsigns[call]) / 30;
+				if ( months > g_rosterSettings.maxLoTW )
+				{
+					callRoster[callHash].tx = false;
+					continue;
+				}
+			}
 		}
 
 		if ( window.opener.g_callsignLookups.eqslUseEnable == true && g_rosterSettings.useseQSL == true )