Autoload `whoogle.env` if it exists

The whoogle.env file previously needed to be created and enabled using
the WHOOGLE_DOTENV var. This removes the second step and loads the env
file if it's found during app init.

The Dockerfile has also been updated to copy in whoogle.env if it
exists.

Fixes #909

Dockerfile

@@ -75,8 +75,7 @@ COPY --from=builder /install /usr/local
 COPY misc/tor/torrc /etc/tor/torrc
 COPY misc/tor/start-tor.sh misc/tor/start-tor.sh
 COPY app/ app/
-COPY run .
+COPY run whoogle.env* ./
-#COPY whoogle.env .
 
 # Create user/group to run as
 RUN adduser -D -g $DOCKER_USERID -u $DOCKER_USERID $DOCKER_USER

app/__init__.py

@@ -28,7 +28,7 @@ dot_env_path = (
     '../whoogle.env'))
 
 # Load .env file if enabled
-if read_config_bool('WHOOGLE_DOTENV'):
+if os.path.exists(dot_env_path):
     load_dotenv(dot_env_path)
 
 app.enc_key = generate_key()