[BISERVER-9884]  Correcting bug in WCF XmlUtils logic which mishandled p...

...aths with spaces.

This adds a new file in src-mods which will overlay the original XmlUtils.  You can compare the code around line 84. to the following gist, which shows the getTransformer() method before changes.  
https://gist.github.com/mkambol/6280900#file-gistfile1-txt-L18-L22