Revamp Blind and Eagle Eyes, debuff.kod expansion.

Forum thread: http://openmeridian.org/forums/index.php/topic,103.0.html

This pull request changes the duration of blind from 3-20 seconds to 4-12. The random part of the duration is reduced from 50% to 10%. The time this lasts can be set in-game (104) using class properties for blind.

Also, the blind resistance from eagle eyes has been lowered from max 50% to max 20%. EE will still outright stop blind 5% of the time, as it does now.

Included in this pull request are all changes to debuff.kod (from other future pulls) to prevent merge conflicts. I also added a readout for blind (and later, all debuff) duration for 104 testing.

P.S. PLEASE read the forum thread, and if necessary the references and other threads about Qor/blind in the forums before replying to this with a comment. This isn't going to ruin the game if it goes in, but some people are probably going to have to read all of that stuff before replying to get rid of that knee-jerk reaction.