Docs update
Adjusted plugin encoding so that the JSON text no longer duplicates the fields
Docs update
Remove "coreversion" metadata from plugins

There’s no support for it yet, so it’s confusing.
Style cleanups for MOTW

@davidjade I assume these changes are all safe from the BHO’s point of
view? Many thanks
Improved static content for tw5.com
Add parser rule for hard linebreaks
Remove debugging info
Misplaced space
Tweak background colour of HTML-in-SVG demo

To make it look different from the page background colour
Fixed typo in hardlinebreak parser