mozilla/addon-sdk — pull request #826 by ZER0 (2013-03-01 02:55:24+00:00)
Title: Bug 732294 - Panel constructor lacks a way to set position of panel other than "centered"

Implements the API described in [JEP Panel Positioning](https://github.com/mozilla/addon-sdk/wiki/JEP-Panel-positioning) and discussed in [etherpad](https://etherpad.mozilla.org/panel-positioning).

As result of the discussion the anchored Panel are removed from this iteration.