Create mailer helper module
Add email for new signups
Show transaction amounts as dollars and cents

This is implemented on the client-side using datatables. Part of #34
Merge pull request #76 from theswitch/format-money

Show transaction amounts as dollars and cents
Merge pull request #75 from cmrn/mailer

Added basic mailer module and email for new members
Fixes #62 - Added is_keyholder to entities

Updated Member pages to include new field.
Updated tests.
Merge pull request #77 from jamiereid/add-key-to-members

Fixes #62 - Added is_keyholder to entities
Members can now renew their membership and update their details (fixes #49)
Tests for member renewal/edit
Merge pull request #78 from cmrn/renew

Members can now renew their membership and update their details
Better (deployable) index page
Merge pull request #79 from cmrn/index-placeholder

Better (deployable) index page
Import members from csv
fix config, wasn't working.
Merge pull request #80 from brendam/master

Import members from csv
Fix mailer.py mailgun method