message: Expose InstanceError
diff: @@ -3,7 +3,7 @@ extern crate shared_library;
  extern crate lazy_static;
  pub use instance::{Instance, DeviceError};
  pub use device::Device;
  -pub use entry::{Entry, LoadingError};
  +pub use entry::{Entry, InstanceError, LoadingError};
  mod instance;
  mod device;
  