Temporary checkpoint.
Merge branch 'master' of ssh://bongobondhu/git/github/rmarkdown into jgdev

Conflicts:
	R/revealjs_presentation.R
Read reveal.js package.json file to determine current version.
Fixed up URL encoding
More edits ...
Merge branch 'jgdev' of ssh://bongobondhu/git/github/rmarkdown into jgdev
Now it's working.