Make sure codecov is installed

Author: mattrobenolt

.travis.yml

@@ -29,4 +29,4 @@ script:
   - make travis-lint-$TEST_SUITE
   - make travis-test-$TEST_SUITE
 after_success:
-  - codecov -e TEST_SUITE
+  - which -s codecov && codecov -e TEST_SUITE

Makefile

@@ -139,6 +139,7 @@ travis-setup-cassandra:
 	echo "create keyspace sentry with replication = {'class' : 'SimpleStrategy', 'replication_factor': 1};" | cqlsh --cqlversion=3.0.3
 	echo 'create table nodestore (key text primary key, value blob, flags int);' | cqlsh -k sentry --cqlversion=3.0.3
 travis-install-python: travis-upgrade-pip install-python-tests travis-setup-cassandra
+	python -m pip install codecov
 travis-noop:
 	@echo "nothing to do here."