As BeautifulSoup is required, add it to requirements.txt
date was missing in import. Fixed.
base64 module is not needed, so remove it.
ArchivedExpense's were not being saved. Fixed.
update_legislators_extra_data() has a bug that if a Legislator is found on the website but not on the database, it returns an error and stops the update.

Now we check for that.
Increase the maximum number of tries
Show the number of tries when saying unable to retrieve
If no rows are present, set rows to an empty list
Make camara federal collection more robust by retrying all queries
Merge pull request #14 from luciocorrea/fix_senado

Fix Senado  update_data_for_year and update_legislators_extra_data()
Make camara federal collection be able to continue from where it stopped