Save urls on different column on CSV
Save messages from private conversation as private messages
Add logger to bot
Fix english error on README

Signed-off-by: Daniela Feitosa <danielafeitosa@colivre.coop.br>
Change bot to use a plugin structure
Change method name from save_message to save_message_with_keywords
Add structure to handle more events than only messages
Change save_events method to handle other events
Add methods that saves all events on a channel or private chat
Fix bug when creating a private message csv log
Change author on Readme
Update README.md
Add a number of channels in which to realize the first test
Fix channel list on configuration file
Get test data
Get second test data