clean up
[FEATURE] Amazon SES module
[FEATURE] BTC arival email notification
[FEATURE] poll hot wallet for low balance to send email notification to admin
[FEATURE] fire hot wallet balance polling
[FEATURE] send email notification on outgoint payment with amount
[CHORE] adjust low balance and corrected typo on email addresses
[CHORE] adjusted last received amount for testing
[CHORE] set endpoint to blockchain