Ports should be integers

The ports should be integers.
Define whitespace. Closes #20.
Merge pull request #18 from C0mkid/master

The ports should be integers
close the gap in "case- sensitive"
Add node.js implementation
64-bit numbers.
Merge pull request #31 from benolee/master

close the gap in "case- sensitive"
Merge pull request #32 from aaronblohowiak/patch-1

Add node.js implementation link