Fix Lists dependency
Fix chapter 4 modules
Add missing purescript imports
Merge pull request #6 from tinkhaven/master

Add missing purescript imports
Remove tabs and remove trailing whitespace from examples
Merge pull request #7 from minikomi/tabcleanup

Remove tabs and remove trailing whitespace from examples
Merge branch 'master' of git://github.com/paf31/purescript-book

Removed 'modules' from Gruntfile.js in chapter4.  Whitespace only changes in chapter 5.

Conflicts:
	chapter4/Gruntfile.js
	chapter5/Gruntfile.js