anti magic storm egg was not recognized. Thus anti magic rain in the generators and the generators wasn't working correctly. Thanks wjp for figuring that out

git-svn-id: https://svn.code.sf.net/p/exult/code/exult/trunk@7440 67c084eb-e78b-48f3-b8e7-bfa43f95ef20
Tweaked sparkling anti magic rain a bit. We were dropping much too much rain compared to the original

git-svn-id: https://svn.code.sf.net/p/exult/code/exult/trunk@7441 67c084eb-e78b-48f3-b8e7-bfa43f95ef20