Fixed issue with read-literate-string to handle short strings #TDD.
Rearranged the order of the functions so that "lein ring server"
loads the file. read-post-from-file now loads the blog post from a file.

I realized that I wasn't sure what I even wanted from the Literate Clojure
functionality. I suppose I should have written test cases first. #TDD and
all that. Anyhow, I'm going to put the Literate Clojure part on hold and
get the rest of the blog functionality working.
While working with the defpost macro was fun, it lead to problems
(read-string was taking out all comment lines ... like you would expect),
and was really a distraction from the functionality that I actually need.
Added post-head to generate the Hiccup data-structure for the html-header.
Added in Twitter Bootstrap for styling. Added route so that Compojure serves
up the styling files.
Added further functions for composing a blog post.
I'm not sure if I'm sold on the idea of doing all html formatting inside
Clojure code. I suppose this is really the only way of finding out.

I borrowed some css from the Bootstrap blog example, pursuant to
their licensing allowances. This css will be replaced in the future.
Added some code to make the hiccup-generated html look nicer.
I realized that the whole idea of generating all the html programatically is
probably the wrong way to do it. The plan going forward is to insert special tags
with clojure code in them into html templates.
Made a eval-clj-tags function that goes through html and evaluates all tags of the form
<clj src="(some_expression)"/>.
For example, <clj str="(+ 5 2)"/> evaluates to 7.

Added a blog template file, largely derived from Twitter Bootstrap's example blog page.
Changed the regex in eval-clj-tags to support quotes within clj tags.
Added a second regex to eval-clj-tags to strip out one layer of quotes so that
strings returned from clj-tags don't show up as quoted.
I'm still working on making strings within strings show up as quoted.
Right now the quotes are getting escaped somewhere in the process and
are showing up as \" instead of ".