added jquery.cookie
split out basic from layout; added admin template

Both layout and admin depend on basic. Any page can include any of these
templates... basic comes w/o the site-specific branding, for times when
that's needed.
admin index still uses "layout", but now header & footer aren't rendered

I plan to port this to the admin layout in the not-too-distant-future.
remember the author selection in the blog post creation
Merge pull request #7 from OSAS/admin-refactor

Admin refactor