Fixes #2808. Remove --require flag.
Merge branch 'master' of git://github.com/jashkenas/coffee-script into improved-error-messages

Conflicts:
	lib/coffee-script/coffee-script.js
	lib/coffee-script/command.js
	lib/coffee-script/helpers.js
	lib/coffee-script/lexer.js
	lib/coffee-script/nodes.js
	lib/coffee-script/repl.js
	src/coffee-script.coffee
	src/command.coffee
	src/helpers.coffee
	src/lexer.coffee
	src/nodes.coffee
	test/helpers.coffee