#95 Change formatting of XML report

[Anonymous]

Reports in xml have default (raw?) formatting, so are completely unreadable for human. The "PrettyFormat" for XMLOutputter looks much better.

The drawback of "PrettyFormat" is larger file size. In my case generated xml file has increased from ~580kB with default formatting to ~700kB with "PrettyFormat".

As requested, my email:
kryszt2@o2.pl

PS. Pardon my English, I’m still learning how to use it :)