Add internal documentation
Add internal documentation

pollarm/XCGLogger,mottx/XCGLogger,adonoho/XCGLogger,cwoloszynski/XCGLogger,DaveWoodCom/XCGLogger,pollarm/XCGLogger,DaveWoodCom/XCGLogger,cwoloszynski/XCGLogger,adonoho/XCGLogger,mottx/XCGLogger