massive refactoring to switch from camelCase to snake_case:

historically, Libervia (SàT before) was using camelCase as allowed by PEP8 when using a
pre-PEP8 code, to use the same coding style as in Twisted.

However, snake_case is more readable and it's better to follow PEP8 best practices, so it
has been decided to move on full snake_case. Because Libervia has a huge codebase, this
ended with a ugly mix of camelCase and snake_case.

To fix that, this patch does a big refactoring by renaming every function and method
(including bridge) that are not coming from Twisted or Wokkel, to use fully snake_case.

This is a massive change, and may result in some bugs.

sat_frontends/quick_frontend/quick_utils.py

@@ -22,7 +22,7 @@ from os.path import exists, splitext
 from optparse import OptionParser
 
 
-def getNewPath(path):
+def get_new_path(path):
     """ Check if path exists, and find a non existant path if needed """
     idx = 2
     if not exists(path):