Remove re-positioning of boxes on snap-to-lines

Boxes are already positioned with x-position and y-position calculation
in step 8 when snapt-to-lines is true.
Closes https://www.w3.org/Bugs/Public/show_bug.cgi?id=19178
Restore size clamping in rendering

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25660

This was removed in commit 3d05e2e05c72b01404cf290bf07c7f0f367827a7.
Text direction (LRT/RTL) now has no effect on position, so the restored
text is somewhat simpler than the original.
Use positionAlign instead of align for maximum size

This currently does the right thing, but will likely need to be revised
after https://www.w3.org/Bugs/Public/show_bug.cgi?id=26020 is fixed.
Remove trailing period after [CSSVALUES] reference
Merge pull request #111 from foolip/trailing-period

Remove trailing period after [CSSVALUES] reference
Merge pull request #105 from foolip/maximum-size

Restore size clamping in rendering
Merge pull request #100 from silviapfeiffer/snapToLinesPositioning

Remove re-positioning of boxes on snap-to-lines
Moving the respec menu underneath the bug filing.

This avoids overlap of these two boxes during spec development.
Merge pull request #114 from silviapfeiffer/moveRespecBugs

Moving the respec menu underneath the bug filing.
Add a conformance section.

Closes https://www.w3.org/Bugs/Public/show_bug.cgi?id=22591
Define WebVTT cue identifiers as unique.

Closes https://www.w3.org/Bugs/Public/show_bug.cgi?id=24674.
WebVTT region identifier must also be unique.
Merge pull request #113 from silviapfeiffer/uniqueIdentifier

Unique identifier
Merge pull request #115 from silviapfeiffer/conformanceSection

Add a conformance section.
Run format.py

The rendered output has been manually verified to be identical.
Manually indent </script> and </style>

format.py isn't smart enough to get these right.
Merge pull request #117 from foolip/reformat

Run format.py
Conformance for authors section in wrong place.

This makes sure that the "Conformance for authors" section gets into the
Table of Contents.
Update build script to create FPWD for TTWG.

This also requires updating respec so we can use the latest process
document.
Unindent WebIDL to match HTML

https://html5.org/r/8808