Revert "RNG namespace made. Only has normal function and the generator "gen"."

This reverts commit 5a0f485374ae862ad84aaac7a887e55e69943ce4.
Revert "Changed RNG to use STD's <random>, with std::default_random_engine."

This reverts commit c9641f2a9d11890265f2c292488fbcd274c4923c.
Revert "Changed makefile to use -std=c++0x. Also changed a compatibility issue in game.h"

This reverts commit dc6671c1104a353ea78fdba779117978bc6c9cc2.