Working Copy for laptop, not fit for compilation.
Renamed global variable "settings" to "mainConfig", to help prevent derpage when using Config * settings as a function parameter.
Updated config and inputhandler to use protected instead of private.
Closes #14

Large commit. In short, it reworks the context manager to utilize states instead of manually rendering, allowing for more flexibility.
Each context now only manages its window/OpenGL context, and each state now manages what is currently being rendered. Soon, states will for the most part no longer render manually, and instead use Scene(s) and CEGUI.
Merge branch 'feature/statemanagement' into develop