Addition of user profiles

Users now have profiles where they can view all of their posts.
To view a user profiles, you must be logged in.
Addition of avatars from Gravatar.

Users now have their gravatar avatar on their profile page
at the top and also next to each of their posts.
Addition of avatars from Gravatar.

Users now have their gravatar avatar on their profile page
at the top and also next to each of their posts.

Tidying
Reduced HTML for showing posts
Fixes
Profiles can now be edited & have extra info

Profiles now contain about me and last logged in sections.
The about me and nickname can be edited.