Fix an error: 'is_superuser' referenced before assignment
Version bump
Default new added Reports to filter out estimate invoices.
Squashed commit of the following:

commit 42344c918e9868afbcd1d957f682b256c38bdc43
Author: John Eddie Ayson <je@bixly.com>
Date:   Fri May 24 18:47:31 2013 +0800

    #40: Member reminders
Update reminder message to append time to the renewal_period_end_dt
Update the get_membership_type_choices to resolve the issue about logged_in users not being able to see membership types on membership join
Update README.md

Added link to ova download and demo site which both came up in phone calls this week.
Updating is_expired and in_grace_period method in MembershipDefault
Changing the way we detect the "delete" checkbox on photos bulk edit
Changing namespace passed on PhotoBatchEditForm.__init__ method
Add a membership setting MemberNumberBaseNumber
Update is_expired to make sure expired means expired and not in grace period
Add default_value for setting MemberNumberBaseNumber
Update function create_member_number to use the setting MemberNumberBaseNumber
Adding uploaded to photo detail page.
Updated indexing for articles in whoosh.
Version bump
Merge branch 'master' into bixly-testing
Moving resumes to the TendenciBaseModel. Adding search text template.
Not overwriting the queryset method on MembershipDefaultAdmin