some fixes for the default style
adding a new style: obtvse
VERSION++
adding deckjs theme
support downloading remote markdown files
info about latex vs markdown conflicts added to README (solves issue 18)
Added gemfile.
Added metadata handling via YAML-Frontmatter.
Mention new feature in README.
Merge pull request #19 from svenwin/master

Metadata via YAML-Frontmatter
better documentation
version++
add readme, license, and examples to gem (fixes issue #21)
break out usage into its own file
usage update
readme update
silly usage fixes
Fix links in README (fixes issue #23)
link to impress.js in readme
fixing issue #27 (ols werent being numbered)