Library reports fractions of bytes

[neonbunny]

For small files, using the .humanReadable results in fractions of a byte, e.g. 0.725 B for a file which is 725 bytes. I suspect it's a copy/paste error at:

ember-cli-filesize-transform/addon/objects/FileSize.js

Line 23 in 7f56cd5

return this.get('kb') + ' B';