Bug 944947 - label truncation is not fully supported in Australis menu widgets, r=Enn,MattN

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extra : rebase_source : 24d502659b30d59371b8e33bba65091c546763d5
Bug 944947 - automatically hyphenate labels for items in Australis' menupanel, r=MattN

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extra : rebase_source : 3c621f7203eaec41d545c6da884f2b6856af94a7
Bug 944947 - update bookmarks toolbar button styling some more for Australis, r=jaws