[osx] - adapt osx packaging - make it similar to what we do on ios and atv2 for consistency reasons
[cosmetic] remove the mentions of xbox in pydocs code
Merge pull request #2490 from MartijnKaijser/remove_xbox

[cosmetic] remove the mentions of xbox in pydocs code
[OSX] SSE42 is for i7+ cpu, should not be set by default.
Merge pull request #2478 from Memphiz/osxpackaging

[osx] - adapt osx packaging - make it similar to what we do on ios and a...
[osx/ios/atv2] - xcode: add XBMC_DEPENDS_ROOT and us it for constructing XBMC_DEPENDS - allows overwrite of XBMC_DEPENDS_ROOT when building with xcodebuild from commandline
[OSX] SSE4.1 is also not supported by some of old macbook, e.g. cpu T7200.