Most of the pep8 changes finished. Be careful, things may be horribly broken.

src/fenrirscreenreader/core/commandData.py

@@ -9,16 +9,16 @@ import time
 
 # used as shared memory between commands
 # use this in your own commands
-commandBuffer = {
+command_buffer = {
     'enableSpeechOnKeypress': False,
     'Marks': {'1': None, '2': None},
     'bookMarks': {},
     'windowArea': {},
 }
 
-# used by the commandManager
-commandInfo = {
-    # 'currCommand': '',
+# used by the command_manager
+command_info = {
+    # 'curr_command': '',
     'lastCommandExecutionTime': time.time(),
     'lastCommandRequestTime': time.time(),
 }