Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Ref files for linebreak tests
Add reference file for background-size case

Modify 12 test case and add 3 reference files.
Merge pull request #581 from chenxix/chenxix/csswg-test/background-size

Add reference file for background-size case
CSS Writing Modes: add requirements doc for TCY testing font

First draft. Needs much more work...

BUG: https://github.com/w3c/csswg-test/issues/571
[css-gcpm-3] fix error in string-set-005.xht; add more tests to work-in-progress
merge

--HG--
rename : css-gcpm-3/string-set-005.xht => css-gcpm-3/string-set-005.html
rename : css-gcpm-3/string-set-009.xht => css-gcpm-3/string-set-009.html
Fixed help URL, removed assertion & help from ref files
Local stuff removed from baspglwj files
Merge pull request #582 from r12a/r12a/linebreak-refs

Ref files for linebreak tests
Merge remote-tracking branch 'upstream/master'
updated readme with current info about repo structure and process. fixes #584
remove old duplicate readme, ported the current relevant info into README.md
Merge pull request #587 from rhauck/update-readme

Update readme
Sync Mozilla tests as of https://hg.mozilla.org/mozilla-central/rev/ad8cb646fad6 .
Add reference file for justify-content  case

Modify 5 test case and add 1 reference file.
Merge pull request #586 from chenxix/chenxix/csswg-test/flex-justify

Add reference file for justify-content  case