Make print-version script less dependent on node modules; fix webapp …

…manifest.

bin/print-version.js

@@ -1,12 +1,18 @@
 #!/usr/bin/env node
 // node script to emit the current version of the source code
 
-var requirejs = require('requirejs');
-requirejs(['commander', 'fs', '../src/version'], function(program, fs, version){
-    program
-        .version(version)
-        .usage('')
-        .parse(process.argv);
+var requirejs = require('../r.js');
+requirejs(['../src/version'], function(version) {
+
+    try {
+        // use the node module 'commander' to give a nicer interface,
+        // if installed.
+        var program = require('commander');
+        program
+            .version(version)
+            .usage('')
+            .parse(process.argv);
+    } catch (e) { /* I guess it's not installed */ }
 
     console.log(version);
 });

manifest.webapp

@@ -1,5 +1,5 @@
 {
-  "version": "@VERSION@",
+  "version": "@VERSION@.0",
   "name": "Nell's Colors",
   "description": "Draw pictures and practice letters",
   "icons": {
@@ -11,7 +11,7 @@
     "url": "http://wiki.laptop.org/go/User:CScott"
   },
   "installs_allowed_from": ["*"],
-  "appcache_path": "manifest.appcache",
+  "appcache_path": "/manifest.appcache",
   "orientation": "landscape",
   "fullscreen": "true",
   "default_locale": "en"