some doc updates / fixes

there is no bepasty.wsgi in the repo, I assumed that bepasty/wsgi.py is meant (needs testing)
there will be a first pypi package soon, fixed docs telling there is none
recommend a real webserver / wsgi server for production
typos, formatting
setup.py: add some metadata, add AUTHORS file, set version to 0.0.1, set status to alpha

please add your name / email to AUTHORS file yourself if you contributed to the project