get BASE_URL from enviroment

settings.py

+import os
+
 '''Settings used by LDE regression test'''
 
 '''URL API to test'''
+
+if os.environ.get('BASE_URL') is not None:
+	BASE_URL = os.environ.get('BASE_URL')
+else:
 	BASE_URL = 'https://simcaq.c3sl.ufpr.br/api/v1/'
 
+print("using BASE_URL=",BASE_URL)
+
 '''List of all base routes available to test'''
 BASE_ROUTE_LIST = [
 		['class'],