[corlib] Fixed issue with Console.InputEncoding/OutputEncoding not changing the encoding of the underlying writers and readers.
Fix runtime build on osx 10.10.
Build x86_64 last so that debugging symbols match.
Updated mscorlib.audit.
Merge branch 'unity-staging' of https://github.com/Unity-Technologies/mono into unity-staging
Additional i386 libs are required in order for 2015 compiler to work
Merge pull request #171 from Unity-Technologies/unity-staging

Console Encoding and runtime build fixes