Wrap entry tags in div

This makes including a genericon much easier and allows for the tag
list and edit link to be displayed inline.
Remove the sidebar from single posts and use the post format layout

Starting to incrementally add in post format support here.
Add support for the link post format
Include an ephemera widget

This is from Twenty Eleven and will let us display a log of link posts
in a widget area.
Include template for link posts
Set search results pages to use the post format instead of a search-specific template
Include ephemera widget and set widget titles to less prominence
Include function to grab the first link in post content

This lets the ephemera widget display the title of a post linked to the
destination
Exclude non-standard post formats from the homepage

This feels totally hacky and like there's an easier way to do this. For
now committing it as "it works"
Conditional checks for content display

This is because the template is now used across a wider section of
views.
Include Genericons in our stylesheet
Add a bit of whitespace below the entry date on single posts
Show a Genericon before the tag list and display inline with the edit link
Lost of widget styles to make the sidebar start to come together
Rip out the ephemera widget

Thought of a better way to accomplish this.
Miscellaneous style adjustments for widgets and sidebar in larger viewports
Remove actual widget file
Include image size for Image formats

This is a larger, cropped image size that will let the Image posts fill
the full content width.
Add primary navigation menu in to the header
Image Format template

Does a bunch of stuff for Image Format posts:
- Displays 1200px wide image cropped to 625px tall on archive pages.
- Displays 1200px wide image with unlimited height on single permalinks.
- If no attachment exists falls back to using the image from
the_content.