Log Message:
Update to 31.5.0

Changelog:
Fixed in Firefox/Thunderbird ESR 31.5

    2015-24 Reading of local files through manipulation of form autocomplete
    2015-19 Out-of-bounds read and write while rendering SVG content
    2015-16 Use-after-free in IndexedDB
    2015-12 Invoking Mozilla updater will load locally stored DLL files
    2015-11 Miscellaneous memory safety hazards (rv:36.0 / rv:31.5)