add CSS class to the unit test results DIV
Merge pull request #71 from isaacdontjelindell/unittest-css

Add CSS class to the unit test results DIV
Merge branch 'master' of github.com:rixner/skulpt into rixner-merge
Changes to finding and calling tests to be compatible with  the improved dir function
rename goto to goto_$rw$ because goto is a reserved word in javascript and causes problems as a method name in some browsers
Format the str-ified number to better match real python.
Update tests to match new numeric string output
New builds of pull request and minor changes.