I bit the bullet and implemented "." in the filesystem. I've changed the proto

file to put the binaries in system. I added a few more checks to fsck, and I fixed
a few bugs in src/other/wktls.s.

build/proto

@@ -19,22 +19,22 @@ dd 	         drw-- -1 4
         ttyout   irwr- -1 11
         display  irwr- -1 12
         pptout   irwr- -1 13
+        as       frwr- -1 ../bin/as
+        cat      frwr- -1 ../bin/cat
+        chmod    frwr- -1 ../bin/chmod
+        chown    frwr- -1 ../bin/chown
+        chrm     frwr- -1 ../bin/chrm
+        cp       frwr- -1 ../bin/cp
+        date     frwr- -1 ../bin/date
+        ds       frwr- -1 ../bin/ds
 	init     frwr- -1 ../bin/init
+        ln       frwr- -1 ../bin/ln
+        ls       frwr- -1 ../bin/ls
+        mv       frwr- -1 ../bin/mv
 	password frw-- -1 password
         sh       frwr- -1 ../bin/sh
+        stat     frwr- -1 ../bin/stat
 	$
-    as       frwr- -1 ../bin/as
-    cat      frwr- -1 ../bin/cat
-    chmod    frwr- -1 ../bin/chmod
-    chown    frwr- -1 ../bin/chown
-    chrm     frwr- -1 ../bin/chrm
-    cp       frwr- -1 ../bin/cp
-    date     frwr- -1 ../bin/date
-    ds       frwr- -1 ../bin/ds
-    ln       frwr- -1 ../bin/ln
-    ls       frwr- -1 ../bin/ls
-    mv       frwr- -1 ../bin/mv
-    stat     frwr- -1 ../bin/stat
     ken      drwr- 10
       system l----  3
       $