Replace keywords with symbols using "conceal".

Replaces certains keywords with their equivalent mathematical notation,
such as ∈, ∧ and ∨, as well as UTF-8 arrow symbols for functions.

To enable, put 'let g:coffee_cute = 1' in your .vimrc.
Vim 7.3 (with "conceal" enabled) is required.
Merge branch 'master' of https://github.com/kchmck/vim-coffee-script