Bug 899834 - Use a better hash function for the atoms table.  r=luke.

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extra : rebase_source : f3e187695fe6c968087036af577274334c9033e1
Bug 899009 - TestDllInterceptor.exe crashes after hooking NtWriteFile on Windows 8 + MSVS2012. r=ehsan
Backed out changesets 77fcbb01366c (bug 899792) and e7d81c2597f2 (bug 899241) for OSX bustage.
CLOSED TREE