Bump min Django version to 2.2.5

Bug fix release. For more details, see:
https://docs.djangoproject.com/en/2.2/releases/2.2.5/

evennia/server/evennia_launcher.py

@@ -92,7 +92,7 @@ SRESET = chr(19)       # shutdown server in reset mode
 PYTHON_MIN = '3.7'
 TWISTED_MIN = '18.0.0'
 DJANGO_MIN = '2.1'
-DJANGO_REC = '2.2.4'
+DJANGO_REC = '2.2.5'
 
 try:
     sys.path[1] = EVENNIA_ROOT

requirements.txt

@@ -1,7 +1,7 @@
 # Evennia dependencies, for Linux/Mac platforms
 
 # general
-django >= 2.2.4, < 2.3
+django >= 2.2.5, < 2.3
 twisted >= 19.2.1, < 20.0.0
 pillow == 5.2.0
 pytz

win_requirements.txt

@@ -4,7 +4,7 @@
 pypiwin32
 
 # general
-django >= 2.2.4, < 2.3
+django >= 2.2.5, < 2.3
 twisted >= 19.2.1, < 20.0.0
 pillow == 5.2.0
 pytz