There is now a syntax highlighted rendered view for XML files, where each node

in the XML document will be consistently indented so that it is easy to see

the actual contents of the document, even if the document is minified or

improperly formatted.
Unicode characters will be properly displayed in the render view as well.
There is also support for comparing different XML files with either the

render view or normal text view.

1) Ran unit tests on Python 2.7 and 3.6.

2) Tested manually on Python 2.7 and 3.6 outside of the diff viewer.

3) Tested manually on Python 2.7 and 3.6 inside of the diff viewer.

4) Tested manually on Python 2.7 and 3.6 with a document with UTF-8 encoding

and characters.

5) Tested manually on Python 2.7 and 3.6 with an invalid XML document that

leads to an error while parsing.