Updates that allow for editing entries and displaying code highlighting.
Fixed two bugs. 1 - fixed issue where edit entry page was showing entry.text in the text area as placeholder text, which isn't what we want. 2 - fixed issue where edit entry page wasn't showing an html preview of the entry in the preview area (it was incorrectly showing the markdown text instead)# Please enter the commit message for your changes. Lines starting
Added unit tests for get_entry() and edit_entry().
fixed a bug in edit_post(), which now correctly ensure that users are logged in before allowing them to see the edit page for a post.
Fixed a bug where an IndexError was thrown when trying to edit a post that does not exist.Added a unit test for this case as well.
Merge pull request #12 from sazlin/editing

Added post editing, markdown, and syntax highlighting, and related unit tests