Tags now show up at the bottom of posts. Cleaned up edit page.

Tags now appear at the bottom of both post and preview pages. You can click through to them and it's all good. Something for the icebox => set up the tags as an unordered list so that they can be styled together.

Also cleaned up the edit page so it does not add excess new lines into the text area, thus reducing the number of available characters. However, for some reason I do not understand, the edit page adds 5-6 spaces at the beginning of the first paragraph in the text area. Still need to fix the problem where characters are capped at 255.