add support for logfile

fix --register option

release 1.4

support werkzeug>=0.8, fix max_content_length

use firefox password policy and update dependency version

remove support for bjoern and rename X-Scheme to X-Forwarded-Proto

python3 compatibility

Fix "set wsgi.url_scheme with HTTP_X_SCHEME header", posativ#12

--base-url

no strict slashes