update some requirements
Reorganize settings.py and add support for sendgrid.com email sending
Fix merge conflicts in settings.py
Merge pull request #42 from osantana/master

Adjustments for first deploy on heroku (sendgrid email support and reorganize settings.py)
Melhoria no Makefile para escolher entre Linux e OSX

Senti a necessidade desta alteracao pois
o Readline nao eh necessario no Linux.
Mudanca no settings.py

Usando os.getenv deixa de me obrigar a setar a
variaval de ambiente da minha maquina local
Incluindo plurais para classes da app members
Pequena melhoria no retorno do nome dos objetos Members no admin
Merge pull request #43 from fmondaini/master

Algumas mudanças sutis
Retorno do nome do objeto PaymentType no Admin
Merge pull request #44 from fmondaini/master

Mudança no Admin / Change on Admin site
Commentary fix
Template Fix - Label fix for the case the payment is up to date.
Including the signup button on the main menu at the top
Merge pull request #45 from fmondaini/master

Fixes and Improvements
Update README.md
Update README.md