changes to tests and backup routine
Merge branch 'master' of https://github.com/gustavomazevedo/tbackup-client

# By Gustavo Azevedo (5) and gustavo (1)
# Via gustavo
* 'master' of https://github.com/gustavomazevedo/tbackup-client:
  making pylint a little bit happy
  fix: changing from next_run to next_after in test
  fix: trigger function
  fix: changing function
  fix: self.last_run function call
  added trigger function

Conflicts:
	client/tests.py