Release version 0.9.4

Changes compared to 0.9.3

• Allow injecting T and factories of T even when T is not movable/copyable.
• RTTI is now optional (we still suggest to have it enabled, at least in debug mode, for better error messages).
• Depend on sparsehash to have faster hash tables (leading to a ~25% reduction in injection time)
• Use a single memory allocation per injector, instead of allocating each singletons separately (for improved injection performance)
• Fix performance bugs, now Fruit is much faster