Eliminating unneeded function call
Adding another check to AnySharedPointer
Deprecating implicit coercion of Autowired<T> to shared_ptr<T>, tests updated in preparation
DeferrableAutowiring now has protected inheritance of AnySharedPointer
CoreContext now takes advantage of AnySharedPointer inheritance by DeferrableAutowiring
Merge pull request #121 from leapmotion/ref-ptrslot

Break implicit conversion between std::shared_ptr and Autowired