fix: test: #322: disable integration tests by default

[jordanw-bq]

No description provided.

[kvankayala]

-rf :rubix-tests will only start rubix-tests module. So, Cobertura is not reporting coverage for all the other unit-tests. I think you should remove -rf :rubix-tests

[jordanw-bq]

Cobertura coverage gets reported as a separate step, since running tests with coverage interferes with the integration tests:

rubix/docker_build_rubix.sh

Lines 32 to 34 in a990830

	if [[ -n "${TRAVIS}" ]]; then
	upload-coverage-results
	fi

rubix/docker_build_rubix.sh

Lines 13 to 20 in a990830

	upload-coverage-results() {
	echo "=== Running tests with coverage ==="
	# "cobertura-integration-test" goal needed for shading JARs
	# if run on CI, integration tests will have been run before this
	mvn cobertura:cobertura-integration-test -Pno-integration-tests
	echo "=== Uploading code coverage results to Codecov ==="
	bash <(curl -s https://codecov.io/bash)
	}

We start from this module to avoid running the unit tests multiple times, which would increase the build time by 1:30-2min.

[codecov-io]

Codecov Report

Merging #323 into master will increase coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #323      +/-   ##
==========================================
+ Coverage   50.36%   50.49%   +0.12%     
==========================================
  Files          61       61              
  Lines        3121     3131      +10     
  Branches      348      348              
==========================================
+ Hits         1572     1581       +9     
- Misses       1462     1464       +2     
+ Partials       87       86       -1

Impacted Files	Coverage Δ
...om/qubole/rubix/hadoop2/Hadoop2ClusterManager.java	56.52% <0%> (-4.46%)	⬇️
.../qubole/rubix/hadoop2/Hadoop2ClusterManagerV2.java	51.61% <0%> (-1.02%)	⬇️
...rc/main/java/com/qubole/rubix/spi/ClusterType.java	46.15% <0%> (+46.15%)	⬆️