Some minor changes in authorization.lisp

Reformatted the code and fixed removed @with-return-place-saved from
registration page.
Added ORIGINAL-POSTER column to stories table

That was made in order to simplify editing the story by others.
Once story was published, OP cannot be changed.
Removed accidentally added ui/pages/book.lisp

There's actually nothing in it to commit.
Some more minor changes in ui/pages/authorization.lisp
Changed password hashing function to append salt after password

That would make brute force attack much harder.