Prevent range addAll init function from being called more than once
Update onAlarm to use tabmanager
Add prototype gulp tasks
Fix onupgradeneeded object store exists error

The object store is unconditionally deleted if the database is upgraded,
however, this will cause users to lose their tabs
Add onCreated/onAttached/onDetached event handler

minThreshold will clear or reset all alarms for the window when the
minimum tab threshold is crossed.

Update onActivated event handler to reset the previous tab alarm and
clear the current tab alarm instead of simply resetting the current tab
alarm.

Add provisional eventPage notifyError function.
Fix chrome autolock regexp and resetAlarm when given a tabId number

Chrome.*// is not a valid regexp and resetAlarm needs a url to enforce
autolocking