Rework logging structure

Makefile

@@ -2,6 +2,7 @@ init:
     pip install -r requirements.txt
 
 install:
+	mkdir logs
 	cp jeevesbot/env.py.dist jeevesbot/env.py
 	cp jeevesbot/secret.json.dist jeevesbot/secret.json
 

log.py

@@ -17,7 +17,7 @@ LOGGING = {
             'level' : 'INFO',
             'class': 'logging.handlers.RotatingFileHandler',
             'formatter': 'standard',
-            'filename': 'jeeves.log',
+            'filename': 'logs/jeeves.log',
             'maxBytes': 4096,
             'backupCount': 7
         }