Issue#145

Replaced return new FileWriter(resultFile) with return new
PrintWriter(resultFile, "UTF-8") to support Unicode character support in
Test History page.

And fitnesse should be started with "-Dfile.encoding = UTF-8" argument.
#145

Changes for Unicode Characters support in Test History Page
Merge pull request #221 from abhijit154/master

#145 - Can't see Unicode characters in test history pages