updates application structure

.babelrc

@@ -0,0 +1,7 @@
+{
+    "presets": [
+        [
+            "@babel/preset-env"
+        ]
+    ]
+}

.browserslistrc

@@ -0,0 +1,10 @@
+[production staging]
+>5%
+last 2 versions
+Firefox ESR
+not ie < 11
+
+[development]
+last 1 chrome version
+last 1 firefox version
+last 1 edge version

.coveragerc

@@ -0,0 +1,29 @@
+[run]
+source =
+    arches_lingo/
+
+omit =
+    */python?.?/*
+    */models/migrations/*
+    */settings*.py
+    */urls.py
+    */wsgi.py
+    */celery.py
+    */__init__.py
+
+data_file = coverage/python/.coverage
+
+[report]
+show_missing = true
+
+exclude_lines =
+    pragma: no cover
+
+[html]
+directory = coverage/python/htmlcov
+
+[xml]
+output = coverage/python/coverage.xml
+
+[json]
+output = coverage/python/coverage.json