add dqn_per to start per testing

Author: kengz

rl/spec/classic_experiment_specs.json

@@ -92,14 +92,11 @@
       "exploration_anneal_episodes": 10
     },
     "param_range": {
-      "lr": [0.001, 0.005, 0.01, 0.02],
-      "gamma": [0.95, 0.97, 0.99, 0.999],
+      "max_mem_len": [2000, 5000, 10000],
+      "alpha": [0.0, 0.2, 0.4, 0.6, 0.8, 1.0],
       "hidden_layers": [
-        [16],
-        [32],
         [64],
-        [16, 8],
-        [32, 16]
+        [128]
       ]
     }
   },