Add zip file of 'code' directory and refer to it on the Setup page

- This addresses Issue #288
- Learners will now have both 'data' and 'code' directories
- These codes are used in the 10-cmdline lesson (Command-Line Programs)

Author: mrawls

code/python-novice-inflammation-code.zip

@@ -7,9 +7,11 @@ permalink: /setup/
 You need to download some files to follow this lesson:
 
 1. Make a new folder in your Desktop called `python-novice-inflammation`.
-2. Download [python-novice-inflammation-data.zip][zipfile] and move the file to this folder.
-3. If it's not unzipped yet, double-click on it to unzip it. You should end up with a new folder called `data`.
-4. You can access this folder from the Unix shell with:
+2. Download [python-novice-inflammation-data.zip][zipfile1] and move the file to this folder.
+3. Also download [python-novice-inflammation-code.zip][zipfile2] and move it to the same folder.
+4. If the files aren't unzipped yet, double-click to unzip them. You should end up with 
+two new folders called `data` and `code`.
+5. To get started, go into the `data` folder from the Unix shell with:
 
 ~~~
 $ cd
@@ -36,4 +38,5 @@ $ python
 ~~~
 {: .source}
 
-[zipfile]: {{ page.root }}/data/python-novice-inflammation-data.zip
+[zipfile1]: {{ page.root }}/data/python-novice-inflammation-data.zip
+[zipfile2]: {{ page.root }}/code/python-novice-inflammation-code.zip