v0.4

• Set correct username for pg connection #55 (@numbata)
• Protect remote server from pushing #51 (@IntractableQuery)
• Use stage name as rails_env #49 (@bronislav)
• Remove local db dump after db:push if db_local_clean is set #47 (@pugetive)
• Fixed app:pull and app:push tasks #42 (@iamdeuterium)
• Added space between -p and the password #41 (@iamdeuterium)
• Add option to skip data synchronization prompt question #37 (@rafaelsales)
• Add option to remove remote dump file after downloading to local #36 (@rafaelsales)
• Use port option from database.yml #35 (@numbata)
• Use heroku dump/restore arguments for postgresql #26 (@mdpatrick)