Bug 1111729 - Default to show URL in toolbar instead of page title, and remove preference. r=mcomella

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extra : rebase_source : e26d5f123b2a14c73adfd858d5b5ca2c59899068
Bug 1114506 - Update Sanitizer.jsm to use Downloads.jsm to clear downloads. r=mfinkle

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extra : rebase_source : 6a491763ce64715ea53ec76f6b9e116d25089cae
Bug 1114593 - Replace defaultDownloadsDirectory calls in DirectoryProvider.js. r=mfinkle

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extra : rebase_source : 8e6574838cafecc5c26ed68a1d1a4b3cb6a6a617