Applied the Damage taken algorithm.
Debuffs are implemented. Not the official ratios, will have to consider how stacking takes place.Growl reduces attack by 70% .
Tailwhip decreases defense by 70%. They are functional and working.
Also i change health/attack/speed  to float as they should be floating point numbers and only cast to int when displayed.
Added comments where necessary as well
Merge pull request #10 from DoYouEven/master

Applied the Damage taken algorithm. Fixed debuffs.