Changed the format of savings.

[MOD] Changed the format of saveings.
[ENH] Use local variables instead of global variables.
Added Input.bindKeyEvents() and Input.unbindKeyEvents().

[NEW] Added Input.bindKeyEvents().
[NEW] Added Input.unbindKeyEvents().
Renamed process() to handle().

[MOD] Renamed process() to handle().
Moved loading detection to SceneTitle.

[MOD] Moved m_loaded local variable in Game to SceneTitle.