* Change the default SDK from OS X 10.6 to 10.7.
The 10.6 SDK is no longer bundled with the current version of XCode
* Add explicit casts for permissions value
MD-18896
Reviewed-by: Carles Pina
CMAKE_OSX_DEPLOYMENT_TARGET sets the minimum version that we want the app to run on,
CMAKE_OSX_SDK is the name of the SDK which we want to build against.
The OS X 10.5 SDK does not exist when building on OS X 10.7,
so allow this to be set to 10.6 instead.
This allows the updater to work on older Windows XP systems
without the VC++ 2008 runtime redistributable installed.
* Add statically linked pre-built versions of the zlib and
bzip2 libraries.
This increases the size of the updater executable by 200KB
to ~400KB on Windows.
Mendeley Desktop is currently built for Mac OS 10.5 and newer,
so the updater needs to work on the same platforms.
With this change, it will not be possible to build the updater
on Mac OS 10.7 directly.
