Floating point + the random() function

[mknadler]

Bug exists in Ruby Sass as well; see sass/sass#1819.

Given two integers, x and y, normal behavior is:
x / y * y => x

With certain values for x, however:
x / y * y => x.0

Under normal circumstances, this is not much of a problem; e.g., for font size, it's nbd. However, this behavior causes some calls to the random function to fail unexpectedly, as that function expects an integer for the $limit parameter.

Example here: http://sassmeister.com/gist/247d0a8155bed38bbca2.