While we're at it: everyone, check out MoonScript [1]. It's a great, succinct and featureful compile-to-Lua language, although sadly not very widespread at the moment. It features significant whitespace, syntactic sugar to reduce keyword noise in programs, table and list comprehensions, line (statement) decorators, classes, export and import for working with modules, implicit return, JSON-like table literals and much, much more. I, for one, absolutely love working with it.

[1]: http://moonscript.org