refactoring package name, added docs (#17)

Author: rhajek

.codecov.yml

@@ -1,4 +1,4 @@
 ignore:
-  - "influxdb2/domain/*.py"
-  - "influxdb2/service/*.py"
-  - "influxdb2_test/*.py"
+  - "influxdb_client/domain/*.py"
+  - "influxdb_client/service/*.py"
+  - "tests/*.py"

.travis.yml

@@ -9,4 +9,4 @@ install:
 # command to run tests
 script:
   - ./scripts/influxdb-restart.sh
-  - pytest influxdb2_test
+  - pytest tests