SlimFormatter now wraps everything in a DIV in order to deal with FitNesse now escaping everything that doesn't look like HTML by default

Change-Id: Ifd1a871f6f72711b94a356d796c4654f6b778f84
Merge pull request #69 from boldpi/master

SlimFormatter now wraps everything in a DIV in order to deal with FitNesse now escaping everything that doesn't look like HTML by default