remove returns from css, because eg.
p {
    font-size: 10px;
    color: black;
}

will result in <p style="
    font-size: 10px;
    color: black;
">your text</p>
Merge pull request #6 from joostdekeijzer/master

remove extra whitespace from css
Fixed text-only email rendering on Windows (changed forward-slash to DS constant)