Rework bash/kick stun based on client

This is what the client is doing. It doesn't reuse all the old rules, so those
can't be tweaked unless someone wants to add them back in

zone/string_ids.h

@@ -297,6 +297,7 @@
 #define ADVENTURE_COMPLETE			5147	//You received %1 points for successfully completing the adventure.
 #define SUCCOR_FAIL					5169	//The portal collapes before you can escape!
 #define PET_ATTACKING				5501	//%1 tells you, 'Attacking %2 Master.'
+#define AVOID_STUNNING_BLOW			5753	//You avoid the stunning blow.
 #define FATAL_BOW_SHOT				5745	//%1 performs a FATAL BOW SHOT!!
 #define MELEE_SILENCE				5806	//You *CANNOT* use this melee ability, you are suffering from amnesia!
 #define DISCIPLINE_REUSE_MSG		5807	//You can use the ability %1 again in %2 hour(s) %3 minute(s) %4 seconds.
@@ -354,7 +355,7 @@
 #define HIT_NON_MELEE				9073	//%1 hit %2 for %3 points of non-melee damage.
 #define GLOWS_BLUE					9074	//Your %1 glows blue.
 #define GLOWS_RED					9075	//Your %1 glows red.
-#define SHAKE_OFF_STUN				9077
+#define SHAKE_OFF_STUN				9077	//You shake off the stun effect!
 #define STRIKETHROUGH_STRING		9078	//You strike through your opponent's defenses!
 #define SPELL_REFLECT				9082	//%1's spell has been reflected by %2.
 #define NEW_SPELLS_AVAIL			9149	//You have new spells available to you. Check the merchants near your guild master.