* rename commande line flag '-showHide' to '-firetray-showHide'
* drop use of AddonLogging.jsm in variable F, and use log4moz instead
* do not remove String.prototype.trim
Regarding String.prototype.trim tough, it's unclear why its fallback definition
should be removed: MDN says it was introduced in JavaScript 1.8.1, but it seems
available in 1.7...
* support icedove/iceweasel/iceape (appId's are equivalent with FF, TB, SM)
* have a nice "F" mandatory wrapper object (instead of the long "firetray")
* fix version anchor on the firetray splash page when opening a tab