Add image to sit comments
Add delete comment functionality.
Merge pull request #172 from johnthepink/add-image-and-delete-button-to-comments

Add image and delete button to comments. Fixes #157
Render reply partial on message partial and display sender username for clarity.
Change message create method to redirect to message index instead of message sent.
Add reply partial.
Clean up a little, add some more styling
Markup user profiles with Schema.org Person spec
Repair microdata type for website value

sameAs: "URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Freebase page, or official website." - http://schema.org/Person
Merge pull request #173 from pdostal/profile_schema_markup

Markup user profiles with Schema.org Person spec. Fixes #118