(map, unit_map, draw_map, player_coms[]):

Modify nmap command to allow mapping around a nuke.
Add new command nbmap for bmapping around a nuke.
Add a new mapping flag 'n' for adding nukes to a map.
Correct syntax description for pmap, pbmap, lmap and lbmap
in player_coms[].

info/nbmap.t

@@ -0,0 +1,97 @@
+.TH Command NBMAP
+.NA sbmap "Big map of all your worldly knowledge around a nuke"
+.LV Basic
+.SY "bmap [<SECTS> | <SHIP>] <s|p|l|n|r|t|*|h>"
+.SY "lbmap [<SECTS> | <LAND UNIT>] <s|p|l|n|*|h>"
+.SY "nbmap [<SECTS> | <NUKE>] <s|p|l|n|*|h>"
+.SY "pbmap [<SECTS> | <PLANE>] <s|p|l|n|*|h>"
+.SY "sbmap [<SECTS> | <SHIP>] <s|p|l|n|*|h>"
+A bmap gives you a graphic representation of all or part of your country.
+.s1
+Bmap differs from map in that it reflects everything you've learned
+about the world. If, for example, you navigate near a sector and find
+out that it is sea, it will show up on your bmap as sea, even if it 
+doesn't show up on your map.
+.s1
+Note that bmap shows the \*QLAST KNOWN INFORMATION\*U you have about
+a sector. It may change, and your bmap will not reflect it. For example,
+if you re-designate a sector, it won't show up on your bmap as the
+new sector type until you do a map.
+.s1
+Commands contributing to bmap include (but are not limited to):
+map, nav, fly, bomb, recon, para, drop, lookout, coastwatch, radar.
+(probably others)
+.s1
+Note that any sector
+marked as 'X' on your bmap will automatically be avoided by
+ships when they are trying to calculate the best path between two
+points.  Whenever you detect a sea mine in a sector, the server will
+automatically put an 'X' on your bmap.
+.s1
+You can call up a local bmap while navigating or marching by typing 'B'
+at the prompt.
+.s1
+Examples:
+.EX bmap -9:18,-8:5
+generates a 28 x 14 bmap based on data supplied by the sectors
+in the area specified.
+.NF
+    ---------0000000000111111111
+    9876543210123456789012345678
+ -8        . . . - -             -8
+ -7       . . . . - ^            -7
+ -6    . . . . - - - -           -6
+ -5   . . - . a a - ^ ? ? -      -5
+ -4  . . . . k o ! - ^ ? ? ?     -4
+ -3 . - . a h j a ^ ^ ^ ^ ^ -    -3
+ -2  . . - . a a a ^ a a - - -   -2
+ -1   . . . a a a b + + ^ ^ -    -1
+  0  . . . m c u a a - ^ - ^     0
+  1   . - . a a . a a - - ^      1
+  2    - ^ ^ a a a ^ a - - ^     2
+  3     - - - - - - - . . -      3
+  4      ^ - - - - - ^ - -       4
+  5       - ^ - - ^ - - -        5
+    ---------0000000000111111111
+    9876543210123456789012345678
+.FI
+.s1
+.EX bmap # >mapfil
+where your \*Qrealm\*U (or '#',
+see \*Qinfo realm\*U or \*Qinfo update\*U)
+is -5:5,-6:6 will type out a 11 by 13 sector bmap
+and also put the bmap in the file called \*Qmapfil\*U.
+.s1
+You can also give the number of a ship, and bmap will give you a small
+bmap centered on the location of that ship, provided you own it.
+.s1
+If you use lbmap, you can get a bmap around a land unit. 
+If you use pbmap, you can get a bmap around a plane.
+If you use sbmap, you can get a bmap around a ship.
+If you use nbmap, you can get a bmap around a nuke.
+.s1
+.L "BMAP FLAGS"
+.s1
+If you specify an 's' flag, bmap will put your ships on the map.
+If you specify an 'l' flag, bmap will put your land units on the map.
+If you specify an 'p' flag, bmap will put your planes on the map.
+If you specify an 'n' flag, bmap will put your nukes on the map.
+A '*' will put all on the map.
+When multiple unit types are selected they are displayed
+in the following priority order: nukes, land units, ships, planes.
+To highlight sectors you own, specify the 'h' flag.
+.s1
+You actually have two bmaps.  One which is created by the server; this
+one is called your 'true' bmap.  You can view your true bmap at any
+time using the
+.SY "bmap <SECTS> true"
+command.  However, usually when you view your bmap, you are looking at
+your 'working' bmap.  The only difference between your working bmap
+and your true bmap is that your working bmap also contains
+designations put on there by you using the 'bdes' command, and by your
+friends using the "sharebmap" command.  If somehow your bmap gets
+corrupted, you can revert your working bmap back to your true bmap
+using the command:
+.SY "bmap <SECTS> revert"
+.s1
+.SA "bdes, map, navigate, fly, bomb, recon, paradrop, drop, lookout, coastwatch, radar, sharebmap, Nukes, Maps"