separates the 'TransactionsCrawler' class of each institution
sends username and password to the 'sign_in' crawler
Merge pull request #6 from platanus/refactoring

separates the 'TransactionsCrawler' class of each institution
fix: adds namespace to institution admin permitted params
fix: adds class_name to product admin permitted params
Adds whenever and aws, removes duplicate mysql2
adds mailer and notification controller
adds a route for POSTing an email notification
adds balance to user product