Bug 855847 - Updated console service to give more productive error message when reentrant; r=jlebar

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extra : rebase_source : 3dfbfad2f28ee12f88c1f9bf0988e0699849a662
bug 872765 - b2g emulator package-tests, upload the tests. r=jgriffin

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extra : rebase_source : f8842b5aaa507246149ceaa1c779cd3c49e9bb87