Add localization support and unofficial en_US strings file (#32)

config/template_config.ini

@@ -5,9 +5,14 @@
 # Config file parameters
 [Config]
 ; Config file version. DO NOT EDIT THIS!
-version = 13
+version = 14
 ; Set this to no when you are done editing the file
 is_template = yes
+; Language code for string file
+; Available languages:
+; it_IT - Italian, by Steffo
+; en_US - English, by https://github.com/DarrenWestwood (incomplete, please improve it!)
+language = it_IT
 
 # Telegram bot parameters
 [Telegram]

core.py

@@ -1,11 +1,13 @@
 import sys
 import telegram
-import strings
 import worker
 import configloader
 import utils
 import threading
+import importlib
 
+language = configloader.config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 def main():
     """The core code of the program. Should be run only in the main process!"""

database.py

@@ -5,9 +5,12 @@
 from sqlalchemy.ext.declarative import declarative_base
 import configloader
 import telegram
-import strings
 import requests
 import utils
+import importlib
+
+language = configloader.config["Config"]["language"]
+strings = importlib.import_module("strings." + language)
 
 # Create a (lazy) database engine
 engine = create_engine(configloader.config["Database"]["engine"])