switch to using chai instead of expect
Adds flow control NaN test to expect false
Merge pull request #53 from craveytrain/master

Adds test to check for sending NaN to flow control
recursion tests
numbers-related tests
adding permutation test
better parseInt test
upgrade to require 2.1.2
add function test case "you should be able to create a 'partial' function for variable number of applied arguments"
change 'curry function' test case to return single-argument function when there are still argument(s) to be provided
Merge pull request #54 from dsbonev/curry-function

Add 'curry function' test case
linting with grunt
better fizzbuzz instructions
use .jshintrc file instead for editor support
enforce single quotes

fix #60