Merge pull request #255 from funkbit/master

Added missing close method calls for open files
EXMLTestResult: enable non-ascii tracebacks

also contains a test for this element's message attribute, which was
addressed in 58d6d5539cfc5c8b8fa1ffade10bcd8917d807bc
Merge pull request #256 from keturn/unicode-tracebacks

EXMLTestResult: enable non-ascii tracebacks
Fixes. Close #246
Update reqs
Update reqs