Don't generate released_files.py if released_files_name_prefix is None
Fix typos
Sort configs in gnerator
shell: Improve filename handling in generator
Allow to disable directory recreation in BindingsGenerator
shell: Fix Python3 string handling for listen command

In Python3 a socket operates on bytes but normal strings have type str.
Need to encode/decode between both types properly.
shell: Add all as type for the enumerate command

all ist just a shortcut for available,connected,disconnected.
shell: Avoid printing '\0' in enumerate-disconnect callback
Use more join operations instead of string concatenation