ffi: preserve arrays on javascript objects

HACKING.md

@@ -807,7 +807,7 @@ skulpt.min.js and skulpt-stdlib.js A very minimal installation only uses
 skulpt.min.js, whereas if you want to use any modules they are in
 skulpt-stdlib.js. Looking around the distribution you will not
 immediately find skulpt.min.js because you need to build it. You get a
-sculpt.js file by using the skulpty.py script that comes with the distribution.
+sculpt.js file by using the skulpt.py script that comes with the distribution.
 running `./skulpt.py --help` will give you the full list of commands, but the two
 that you probably most care about are `npm run build` and `npm run docbi`
 The dist command builds both skulpt.min.js and skulpt-stdlib.js docbi builds

README.md

@@ -64,11 +64,11 @@ There is plenty of work still to do in making improvements to Skulpt.  If you wo
 
 1. Create a Github account if you don't already have one
 2. Create a Fork of the Skulpt repository -- This will make a clone of the repository in your account.  **DO NOT** clone this one.  Once you've made the fork you will clone the forked version in your account to your local machine for development.
-3. Read the HACKING.md file to get the "lay of the land".  If you plan to work on creating  a module then you may also find this [blog post](http://reputablejournal.com/adding-a-module-to-skulpt.html) helpful.
-3. Check the issues list for something to do.
-4. Follow the instructions above to get skulpt building
-5. Fix or add your own features.  Commit and push to your forked version of the repository.  When everything is tested and ready to be incorporated into the master version...
-6. Make a Pull Request to get your feature(s) added to the main repository.
+3. Read the HACKING.md file to get the "lay of the land".  If you plan to work on creating  a module then you may also find this [blog post](https://reputablejournal.com/2011/03/18/adding-a-module.html) helpful.
+4. Check the issues list for something to do.
+5. Follow the instructions above to get skulpt building
+6. Fix or add your own features.  Commit and push to your forked version of the repository.  When everything is tested and ready to be incorporated into the master version...
+7. Make a Pull Request to get your feature(s) added to the main repository.
 
 
 ## Community

gen/parse_tables.js

@@ -1546,7 +1546,7 @@ labels:
  [1, 'True'],
  [3, null],
  [1, 'not'],
- [1, 'null'],
+ [1, 'None'],
  [55, null],
  [2, null],
  [25, null],
@@ -1714,7 +1714,7 @@ labels:
  [341, null]],
 keywords:
 {'False': 33,
- 'null': 9,
+ 'None': 9,
  'True': 6,
  'and': 47,
  'as': 108,