Merge remote-tracking branch 'upstream/release_2.3' into devel

* upstream/release_2.3: (91 commits)
  Include python-{paramiko,ecdsa} dependencies
  Remove extra epel testing stanzas
  Unit test for ec2 credentialless inventory
  Fix issue with ec2 iam sync with no credential.
  Use the htpasswd command instead the ansible module
  Pip is no longer needed
  check local user root or not in ./configure
  Remove unneeded when check for super user addition
  Improve distro detection in setup.sh
  Fix superuser check on upgrade
  Minor improvements to setup.sh
  Remove ansible prerequisite check from configure
  Attempt to install ansible within setup.sh
  Allow munin processes to access postgres
  Move up base package dependency install
  fixes jenkins failures
  Proper flake8 fix
  fixes executing processes with correct PYTHONPATH will pickup .pth files
  Show the repo for bundled package file dump
  Proper flake8 fix
  ...

tools/docker/Dockerfile

@@ -6,7 +6,7 @@ ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8  
 RUN apt-get update
 RUN apt-get install -y software-properties-common python-software-properties curl
-RUN add-apt-repository -y ppa:chris-lea/redis-server; add-apt-repository -y ppa:chris-lea/zeromq; add-apt-repository ppa:ansible/ansible
+RUN add-apt-repository -y ppa:chris-lea/redis-server; add-apt-repository -y ppa:chris-lea/zeromq; add-apt-repository -y ppa:chris-lea/node.js; add-apt-repository ppa:ansible/ansible
 RUN curl -sL https://deb.nodesource.com/setup_0.12 | bash -
 RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10 && apt-key adv --fetch-keys http://www.postgresql.org/media/keys/ACCC4CF8.asc
 RUN echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.0 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-3.0.list && echo "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main" | tee /etc/apt/sources.list.d/postgres-9.4.list