Added smart arrows to Marked's smartypants conversions
Added test for #132: Add smart arrows
Fixed #133: Thunderbird: raw HTML not rendering properly
Fixed some newlines
Fixed bug #137: options are broken in Safari 7
Merge branch 'development' of github.com:adam-p/markdown-here into development
Added changes and bumped version numbers. Prepping for release.
Merge pull request #139 from adam-p/development

v2.9.3 release