initial version of balance threshold handling
remove legacy stuff
minor bugfix
change balance limit type to decimal
send notifications from db-defined thresholds
move thresholds into separate app
implement action queue for delayed processing
implement instance stopper
satisfy flake8
start writing tests
tests of instance stopper succeed
fix tests of delayed action queue
added test to simulate required scenario
add comment to explain test
remove dry_run parameter
give event handler better name
fix coverage report generation
add notification if somebody gets promotion
use default_from_email from settings
Update low_balance.txt