Update web commands (#703)

* Remove lisp fetch

* Add fetch script

* Rename get to browse

* Update install

* Add browse package

* Add missing mandelbrot package

* Update package list

dsk/bin/fetch

@@ -0,0 +1,8 @@
+#! lisp
+
+(load "/lib/lisp/core.lsp")
+
+(var url (first args))
+(var dst (filename url))
+
+(shell (str "http " url " => " dst))

dsk/var/pkg/browse

@@ -0,0 +1 @@
+/bin/browse

dsk/var/pkg/fetch

@@ -0,0 +1 @@
+/bin/fetch

dsk/var/pkg/index.html

@@ -1,7 +1,9 @@
 beep
 blank
+browse
 chess
 exec
+fetch
 fonts
 geocal
 geodate

dsk/var/pkg/mandelbrot

@@ -0,0 +1 @@
+/bin/mandelbrot

src/usr/install.rs

@@ -29,11 +29,12 @@ pub fn copy_files(verbose: bool) {
     // can also be installed later with the `pkg install` command.
 
     //copy_file!("/bin/blank", verbose);
+    //copy_file!("/bin/browse", verbose);
     copy_file!("/bin/clear", verbose);
     //copy_file!("/bin/exec", verbose);
+    //copy_file!("/bin/fetch", verbose);
     //copy_file!("/bin/geocal", verbose);
     //copy_file!("/bin/geodate", verbose);
-    copy_file!("/bin/get", verbose);
     copy_file!("/bin/halt", verbose);
     //copy_file!("/bin/hello", verbose);
     //copy_file!("/bin/mandelbrot", verbose);