[testtwf-shenzhen]Add tests for CSS UI outline
Merge remote-tracking branch 'upstream/master' into shiytan/outline
Add the missing name and remove unnecessary div element
Remove duplicated tests in contributors/intel/submitted/css3-basic-user-interface
Remove duplicated tests
Repair the elements' border and position
Merge pull request #371 from shiytan/shiytan/duplicated-tests

Remove duplicated tests in contributors/intel/submitted/css3-basic-user-interface
Merge pull request #330 from shiytan/shiytan/outline

[testtwf-shenzhen] Add tests for CSS UI outline
Updating flexbox cases removing prefixes
Adding border image test cases and cleaning up a few background cases
update uri to fonts spec
switch css-fonts spec uri in buuld script