Update UA override for FaceBook (again) to make it work a little better.
Minimalistic Opera Presto UA which seems to give a decent feature set while not having a broken comment box.
Add granularity for enabling CSS rules in internal style sheets
Add placeholder definitions for style additions that are not currently implemented.
(Mozilla-parity)
Implement overflow-clip-box: content-box|padding-box CSS in style parser
Implement overflow-clip-box: content-box in layout.
Fix text/input padding issues.
Fix an edge case with text input fields not showing the cursor with the new padding code.
Merge branch 'layout-work'
Merge commit '42e6f5d493e67c7b4829dcd80e28031a5093ed02'