Convert windows linefeeds.

Github for windows converts linefeeds to \r\n.  This breaks the
string-replace tasks and the build

Not tested on mac os / linux, but works.
Remove next classes on destination in UIGoXXX

When navigating back to an article that was previously navigated away
from.  The destination may contain a 'next' class.  This results in a
blank article.

This change removes both previous and next classes from the destination.