Improve templates
Add data for menu templates
Midknights_Character: $id for getInstance is optional
Delete E_NOTICE from Midknights_Character
Avoid possible E_WARNING in Midknights_View
Midknights_Data::getClassName now sex compatible
Update Midknights_Character to be constructed based upon char id
Midknights_Character: Add experience by level equation and functions
Improve left side menu template