Changes so that blind effects like those in Flash of Light work.
Fixed issue where blind flag was set for beneficial spells like cure.wq
is_blind works better as an else to the line that handles cure
Fix issue with newly inserted saylinks not working correctly

Sadly still silly
Merge pull request #254 from noudess/master

Changes so that blind effects like those in Flash of Light work.
Merge branch 'master' of https://github.com/EQEmu/Server