Bug 980015 - Remove MOCHITEST_FILES et. al. r=gps

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extra : rebase_source : 3825abc63eb0901bc1422aa00aed3680dbe3e44c
bug 981513 - revert 807441 r=sworkman

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extra : rebase_source : d2c219fe01b6e4e0fdf25b920df0091039cf4c18
bug 981447 - use more conservative dns caching values r=sworkman

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extra : rebase_source : 6ec1873cf1d8202fd49575303e984155b8403bf6