Floft Draft Website, search and url tweaks

I added a link the _drafts folder on Github and added a README
disclaimer for all the old or unfinished content. But, it's online in
the repository, so I might as well mention it at the end of the blog
posts in case people really want to read more.

I try GET for the search request if POST fails with a 405 Method Not
Allowed error. This probably will only occur on the embedded HTTP
server, but just in case I switch to something similar later I added
this functionality.

I added a script to create a new blog post, will speed up that process.
Removed more posts

Removed quite a few older posts and revised some of them removing links
to non-existent content.