Dynamic Tokens should translate ampersand to %26

We use dynamic tokens to pass session names to survey monkey. Many of our session names contain spaces and ampersands.

Pathable correctly represents spaces as %20, which works in a link where space would not.  However, Pathable does not translate the ampersand to %26.

Because an ampersand is used to separate variables in a URL, this has the effect of truncating the session name. 

For example, a session titled "General Q&A" will be passed by the pathable parentName dynamic token as "General%20Q&A".  Everything after the & is considered a new variable, so the full session name does not make it to survey monkey. 

The dynamic token should be passed as "General%20Q%26A".