Option to allow HTML in values

[AlexanderMatveev]

There are some cases when allowing HTML in values is expected.

Example input:

<div itemprop="description">line1<br>line2<br>line3<p>line4</p></div>

Output:

line1line2line3line4

Expected output:

line1<br>line2<br>line3<p>line4</p>

[AlexanderMatveev]

Expected output (another variant):

line1 line2 line3 line4