* it is possible now to add casts and shoots OTF (f.e. with spell bonus)
Centralized stack 'ammo' loading from bonus system.
* introduced small proxy class for local bonus cache
(no need to use global cache if particular selector used on node only in one place)
* handle killing resurrected creatures
* use IBonusBearer::MaxHealth() where possible
* Fixed https://bugs.vcmi.eu/view.php?id=2486
* Possible fix for 0 HP after resurrection.
* Hack-fixed https://bugs.vcmi.eu/view.php?id=2584
* Unified CStack health API
* Use CHealth for CStack count and health points
* increased SERIALIZATION_VERSION
* Added experimental support for cumulative effects for ENCHANTED bonus
* Updated and fixed SPECIAL_PECULIAR_ENCHANT processing
* Initial implementation of cumulative spell effects.
* Scheme for new spell feature - cumulative bonus.
* Hero portrait serialization
* Fix town spells serialization
* Added support for float exponential part in Json
* Added support for int64 in Json
* Added basic Hero definitions serialization
* Added rumors serialization
* Advanced player info serialization.
* Added Disposed heroes serialization, (!) not covered with tests yet
* Added Local event serialization
* Added Pandoras box serialization
* Added Seer hut reward serialization
* Added CQuest serialization
* Added API for map object instance names serialization.
* Added random dwelling options serialization
* Advanced town options serialization
* Advanced hero options serialization
* More map format tests
* A lot of fixes, cleanup and refactoring
