*alterations to playerclass*

$fixed and buffed multiclassing functionality
 -added xp to classes
 -split getCharExperience into two submethods for flexibilty
   +getCharClass(i).getXP() //returns xp of class i
   +getTotalXP() //adds all the class xp together
   (this adds more power being able to menipulate class xp 
    individually by class)
 TODO: make effective current level calculate with xp ammounts
       rather than be set
*made charLevel Calculate itself instead of being added by input*

$takes in the total amount of xp and calculates the total level
*fixed experience equation*
*testing Character class*
Merge pull request #1 from castlez/skillclassdev

confirmed merge from dev to master
Merge pull request #4 from castlez/master

Merging thus far dev on playerclass and character