CFY-799 use new task result handler api
CFY-799 revert oops commit
CFY-799 start integration test environment with proper task workflow bootstrap configuraion
CFY-799 provide means for delete the underlying provider context in ES for testing
CFY-799 add test for retry count and interval
Merge branch 'develop' into feature/CFY-799-task-retries

Conflicts:
	tests/plugins/testmockoperations/tasks.py
CFY-799 add test for inifinite retries
CFY-799 small refactoring
CFY-799 use modified handler api
CFY-799 add test for ignore total_retries
CFY-799 for travis
CFY-799 flake8
Merge branch 'develop' into feature/CFY-799-task-retries
CFY-799 restore provider context after each test
CFY-799 consider provider context in count
CFY-799 update .travis.yml
Merge pull request #56 from cloudify-cosmo/feature/CFY-799-task-retries

Workflow task retries