Fixed wrong path for testing dropbox.py.

Added some format.

Added basic instructions.

SMTP module. It recognizes requests in different languages and requests for help/links. Send three type of emails: delay, help, links. Still various error check pending

Changed log format in 'Design'. Added section 'Features'. Deleted stuff from 'Discussion' and added some others.

Enhanced logging. Deleted private method for logging (one call only). Added private methods for getting configuration options and filtering logging levels