some variable is not define && use UMD for automated build systems

[joe223]

Some variable and window window.navigator is not defined in Node.js. This will causes some errors.
eg.

my.pad16 = function(bytes)
    {
        var newBytes = bytes.slice(0);
        var padding = (16 - (bytes.length % 16)) % 16;
        for(i = bytes.length; i < bytes.length + padding; i++)
        {
            newBytes.push(0);
        }
        return newBytes;
    }

i is not defined.

[JDSlimz]

You have to declare 'i' as a variable the first time you use it.

my.pad16 = function(bytes)
{
var newBytes = bytes.slice(0);
var padding = (16 - (bytes.length % 16)) % 16;
for(var i = bytes.length; i < bytes.length + padding; i++)
{
newBytes.push(0);
}
return newBytes;
}

[joe223]

@JDSlimz I have made a new commit. It update pad16 function