update readme w/zapier link
parens
Protect against case where user is null.

User field is nullable but some functions don't check for None before trying to access fields
change url priority for SLUG_URLS = False

Previous urls.py priority will cause question page not accessible,
but category page instead, when SLUG_URLS is set to False.
Merge pull request #44 from twoolie/patch-1

Protect against case where user is null.
fix markup loading of markdown. oops.
Merge pull request #45 from tzangms/master

fix urls.py priority
strip first/last name for falsy
bump version
ensure works on latest 1.4.5
add compat with 1.5
Merge pull request #46 from zapier/1.5-compat

add compat with 1.5
Add compatibility with 1.5 configurable user model

Made user `ForeignKey` compatible with Django 1.5. Previous versions still supported.
Merge pull request #47 from artscoop/patch-1

Add compatibility with 1.5 configurable user model
fix settings clobbering
import django settings explicitly
add select related and fix needless queries
bump version
utils for 1.5 compatibility in migrations

added the user_model_label to allow south to refer to the user model in the migrations files.
converted initial migration to use custom user model 

imported the new user model label and then used it to enable the migration to handle using the custom user model.