Create Proxy model
Parse proxies
Remove redis dump
Adds bugsnag notifications as error management tool
Adds proxy scraping error notifications
Adds AlertWorker
Adds devise and Alert model
Setup the use of proxies in AlertWorker
Fix the proxy index and adds a method for parsing
Removes proxy port and validates proxy address
Set up for alert worker. Adds chronic gem and set default time zone to Paris
Parse only recent ads
Identify new alerts depending of last_ad_id and last_ad_date
Use chronic-l10n and french partial local
Add notification when ad parsing fails
Keep working with a NodeSet
Fix parsing, saving last ad in Alert