Remove clutter in the UI

Most pages had too many points of focus. Remove all but one purpose
for each page, to make it very utilitarian and simple.

The sidebar is now gone. The projects application has the index
listed in the home page, while the blog will utilize a paged interface
to the list of posts.

Each project, post, and tag will have only the project's, post's, or
tag's information on it, respectively.