CFY-800 modify agent install to make use of non recoverable errors
CFY-800 small fix
CFY-800 for travis
Merge branch 'develop' into feature/CFY-800-use-recoverable-api

Conflicts:
	.travis.yml
CFY-800 test fixes
CFY-800 flake8
Update .travis.yml
Merge pull request #59 from cloudify-cosmo/feature/CFY-800-use-recoverable-api

Use recoverable/nonrecoverable errors