added codecov badge, re-enabled Halo tests

Author: fmoessbauer

.circleci/config.yml

@@ -94,7 +94,7 @@ jobs:
       - image: dashproject/ci:openmpi2
     environment:
       MPI_EXEC_FLAGS: "--allow-run-as-root --map-by core"
-      GTEST_FILTER: "-TeamLocalityTest.*:DARTLocalityTest.*:HaloTest.HaloMatrixWrapper*"
+      GTEST_FILTER: "-TeamLocalityTest.*:DARTLocalityTest.*"
       GTEST_OUTPUT: "xml:test-results.xml"
       CC: gcc
       CXX: g++

README.md

@@ -1,5 +1,6 @@
 [![CI Status](https://circleci.com/gh/dash-project/dash.svg?style=shield&circle-token=cd221e93159f5c97477c9699f3b7adc54d344ae6)](https://circleci.com/gh/dash-project/dash)
 [![Build Status](https://travis-ci.org/dash-project/dash.svg?branch=development)](https://travis-ci.org/dash-project/dash) [![Documentation Status](https://readthedocs.org/projects/dash/badge/?version=latest)](http://dash.readthedocs.io/en/latest/?badge=latest) [![Documentation](https://codedocs.xyz/dash-project/dash.svg)](https://codedocs.xyz/dash-project/dash/)
+[![codecov](https://codecov.io/gh/dash-project/dash/branch/development/graph/badge.svg)](https://codecov.io/gh/dash-project/dash)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/491/badge)](https://bestpractices.coreinfrastructure.org/projects/491)