Rd 29 upgrade pyyaml (#8)

* upgrade pyyaml

* upgrade packages

* update image names __NODOCS__

Author: EarthmanT

.circleci/config.yml

@@ -30,7 +30,7 @@ commands:
           name: Build py27 Wagon
           command: |
               git clone https://github.com/cloudify-cosmo/cloudify-wagon-build-containers.git
-              docker build -t cloudify-centos-7-wagon-builder cloudify-wagon-build-containers/centos_7
+              docker build -t cloudify-centos-7-wagon-builder cloudify-wagon-build-containers/centos_7_py2py3
               docker run -v ~/project/:/packaging cloudify-centos-7-wagon-builder
       - run:
           name: copy wagon to workspace
@@ -49,8 +49,8 @@ commands:
           name: Build RHEL 27 Wagon
           command: |
               git clone https://github.com/cloudify-cosmo/cloudify-wagon-build-containers.git
-              docker build -t cloudify-redhat-7-wagon-builder cloudify-wagon-build-containers/redhat_7 --build-arg USERNAME="$USERNAME" --build-arg PASSWORD="$PASSWORD"
-              docker run -v ~/project/:/packaging cloudify-redhat-7-wagon-builder
+              docker build -t cloudify-redhat-7-wagon-builder cloudify-wagon-build-containers/redhat_7_py2py3 --build-arg USERNAME="$USERNAME" --build-arg PASSWORD="$PASSWORD"
+              docker run -v ~/project/:/packaging cloudify-redhat-7-wagon-builder:latest
       - run:
           name: copy wagon to workspace
           command: cp *.wgn workspace/build/