make sure all presets start with a blank line, looks nicer (tools/checkpresets.py); updated nes

tools/checkpresets.py

@@ -0,0 +1,16 @@
+
+import os,sys,codecs
+
+for root, dirs, files in os.walk("./presets"):
+    for fn in files:
+        path = root + '/' + fn
+        if fn[-1] == '~':
+            continue
+        try:
+            with open(path,'r') as f:
+                data = f.read()
+            if data[0] != '\n':
+                print(path,'no initial newline')
+        except:
+            print(path,sys.exc_info()[0])
+