Proposal for meta-data (third revision)

[Jacob Rus]

Andrea Censi wrote:

> Changes were:

> 

> *	Changed the syntax for compatibility with a future extension mechanism.

> 

> 	The first character in the curly braces must be a colon, optionally

> 	followed by a space:


I wasn't meaning to suggest before that {«extension-name» «content»} was 
necessarily the best syntax for an extension system, but merely that it 
was a possibility.

-Jacob