Require Underscore.js if not already available

Make sure Underscore.js is required if it is not globally available
(e.g. in Node.js).
Remove unnecessary bracket notation
Merge pull request #1 from andreaslundahl/underscore-in-node-fix

Require Underscore.js if not already available
Added unzip
Added unzip
Bumped version number
Notes
Direct port for now'
Direct port for now
Direct port for now
Works, not purely functional
Merge branch 'master' of github.com:fogus/lemonad
Mods
notes for inflection
Refactoring actions
Refactoring actions
Refactoring actions
Refactoring lift
Refactoring lift
Refactoring actions, making tests work