[Bugfix] Fix the environment name for dev mode

It turns out Flask only considers `development` as the development mode; `dev` (used before) is
not working.

calsocial/config_development.py

@@ -0,0 +1,17 @@
+"""Configuration file for the development environment
+"""
+
+ENV = 'development'
+#: If ``True``, registration on the site is enabled.
+REGISTRATION_ENABLED = True
+#: The default time zone
+DEFAULT_TIMEZONE = 'Europe/Budapest'
+
+DEBUG = True
+SQLALCHEMY_DATABASE_URI = 'sqlite:///local.db'
+SQLALCHEMY_TRACK_MODIFICATIONS = False
+SECRET_KEY = 'ThisIsNotSoSecret'
+SECURITY_PASSWORD_HASH = 'bcrypt'
+SECURITY_PASSWORD_SALT = SECRET_KEY
+SECURITY_REGISTERABLE = False
+CACHE_TYPE = 'simple'