Limit "low battery" popup notifications to one or two

[Avi Romanoff]

Currently, I get like 5 messages that my battery is low. One at 20%, 15%, 10%, and like 2 when its critically. Arguably, only one of these if any are needed, as the batty indicator clearly shows when the battery is low, both by becoming a red when the battery is relatively low, and fully red when with an exclamation mark when the battery is critically low.

There should only by one OSD-notify alert: when the icon turns to the exclamation. I believe that's 10% battery life.

[Launchpad Janitor (janitor)]

[Expired for elementary OS because there has been no activity for 60 days.]

[Avi Romanoff (aroman)]

Cody, why was this marked as Incomplete? This still affects even the latest Isis builds.

[Sam Osborne (osborsam)]

On Freya I got one notification at 20 minutes / 7% battery remaining, with nothing previously. I think there should be more, or it higher, or a setting available to select when notifications should appear.