Normalizing indentation a bit in media.html

This commit sponsored by Christian Frank.  Thank you!
basic_auth v0 plugin working
reset mediagoblin.ini
added login.html template hook and basic_auth login template
added login.html template hook and basic_auth login template
moved forgot pw views to basic_auth plugin
fixed missing forgot password link on login page
moved normalize_user_or_email_field to auth/tools.py from auth/forms.py
changed User model pw_hash field to nullable and added migrations
add a check for authentication plugin on startup and respond according to no_auth config option. allows instance to be run w/o authentication
moved send_fp_verification_email() from auth/lib to basic_auth/tools
moved bcrypt_check_password to basic_auth/tools from auth/lib
moved bcrypt_gen_password_hash to basic_auth/tools and added gen_password_hash function to auth/__init__