* New files for lib: CBattleCallback.cpp and CBattleCallback.h

* Updated MSVC project files
* Filesystem: My version of .SND archive does not have \0 after WAV extension. Fixed (though hardcoded 3-char extension length).
* New bonus types: BLOCK_MAGIC_ABOVE for blocking casting spells above given level and BLOCK_ALL_MAGIC for blocking all magic.
* Heavy rewrite of battle callbacks. Fixed some minor bugs. Code reusage between lib/client/server (removed proxy calls). Better access control and support for various perspectives.
* Fixed #1031
* Fixed Orb of Inhibition and Recanter's Cloak (they were incorrectly implemented). Fixed #97.
* Fleeing hero won't lose artifacts. Spellbook won't be captured. Fixed #980.
* Fixed crash when attacking stack dies before counterattack (ie. because of Fire Shield)
* Server does some basic checks if action requests during battle are valid
* Minor stuff.

lib/CSpellHandler.cpp

@@ -256,6 +256,10 @@ bool CSpell::isRisingSpell() const
 	return vstd::contains(VLC->spellh->risingSpells, id);
 }
 
+bool CSpell::isDamageSpell() const
+{
+	return vstd::contains(VLC->spellh->damageSpells, id);
+}
 bool DLL_LINKAGE isInScreenRange(const int3 &center, const int3 &pos)
 {
 	int3 diff = pos - center;