Big refactor, shuffling a lot of files around

src/main.cpp

@@ -1,16 +1,13 @@
 #include "loader.h"
 #include "state.h"
 
-using namespace anm2ed::loader;
-using namespace anm2ed::state;
-
 int main(int argc, const char** argv)
 {
-  Loader loader(argc, argv);
+  anm2ed::Loader loader(argc, argv);
 
   if (loader.isError) return EXIT_FAILURE;
 
-  State state(loader.window, loader.arguments);
+  anm2ed::State state(loader.window, loader.arguments);
 
   while (!state.isQuit)
     state.loop(loader.window, loader.settings);