install ansible via pip on centos/debian or use default provider for the platform
fix rspec tests
change default parameter to automatic
Add openssh-server requirement
Add python-pip requirement
add status build for the v3.0.0 branch
update the examples in the readme for compatibility with the v3.0.0
bump to 3.0.0
Update documentation
The ansible user can behave like root with sudo on the master host

Usefull when running local playbook
minor adjustements in documentation
Merge branch 'v3.0.0'