fix tests

Author: sph3rex

Diff for: docker/Dockerfile.gpu

@@ -1,7 +1,7 @@
 FROM python:3.6.8-jessie
 
-ADD ./requirements.txt /code/
 ADD ./requirements.base.txt /code/
+ADD ./requirements.txt /code/
 
 WORKDIR /code
 

Diff for: lib/RLTrader.py

@@ -126,7 +126,7 @@ def optimize_params(self, trial, n_prune_evals_per_trial: int = 2, n_tests_per_e
         validation_env = SubprocVecEnv([make_env(validation_provider, i) for i in range(1)])
 
         model_params = self.optimize_agent_params(trial)
-        model = self.Model(self.Policy, train_env, verbose=self.model_verbose, nminibatches=1,
+        model = self.Model(self.PolicySub, train_env, verbose=self.model_verbose, nminibatches=1,
                            tensorboard_log=self.tensorboard_path, **model_params)
 
         last_reward = -np.finfo(np.float16).max

Diff for: requirements.no-gpu.txt

@@ -1,2 +1,2 @@
--r requirements.base.yml
+-r requirements.base.txt
 tensorflow