Match posts with current URL when iframe changes its location
added bluebird package
if url matches one of the posts, enter edit mode then update topbar accordingly by showing save and publish buttons
updated enterEditMode to setEditMode with a value parameter
added click event handler for close blog button
Enable pen.js when in edit mode
Disable outline on container initialized by Pen
fixed a problem with outline not disabling
Use html-md to convert html to markdown
Save updated markdown with preserved frontmatter
Code cleanup
fixed a bug where markdown wasn't properly joined by "---"
write yaml, then append markdown on save