First step of functioning refactored code

LOG.md

@@ -0,0 +1,46 @@
+# LOG of MQTTGATEWAY
+
+## [17 June 2022]
+
+Start Version 2.0 of this library.
+
+### Objectives
+- simplify the startup process: loading of configuration, logging setup, etc...
+- adapt logging to simultaneous multiple sessions.
+- change multi threading to async.
+
+### Inputs
+
+The library has to facilitate the retrieval of the 2 files needed for any application using
+this library:
+- the configuration file,
+- the mapping file.
+
+These are stored in files with possibly different names, possibly in different folders.
+
+To start with and make it simple, assume the location of those files is
+in a sub-directory of the home directory called `.mqttgtw` (for example).
+Assume as well that those 2 files have the same name of the application,
+with respectively the suffixes `cfg` and `json`.
+Add the possibility of defining another configuration file on the command line
+with the option `-c`, which has to be located in the same directory though.
+
+### Logs
+
+The library has to facilitate the logging of several concurrent application
+all using the same library but obviously running other applications.
+
+Propose only 3 different handlers:
+- the console, mostly for development,
+- rotating file on local system,
+- journalmd compatible logging (if available).
+
+For the rotating files, use a pre-defined main folder in the home directory,
+for example `mqttgtw_logs`, and create a sub-folder there for each application running.
+
+
+
+
+Also to make it simple, start by locating 
+
+

mqttgateway/__init__.py

@@ -45,10 +45,10 @@
 
 '''
 
-import sys
-PY2 = sys.version_info[0]==2
+#import sys
+#PY2 = sys.version_info[0]==2
 
 ENCODING = 'utf-8'
+LIBRARY_NAME = 'mqttgateway'
 
-__version_info__ = (1, 1, 5)
-__version__ = '.'.join(str(c) for c in __version_info__)
+__version__ = '2.0.0'