initial commit of a basic rolling upgrade guide, based on the lamp_haproxy example
flesh out the CI/CD and load balancer sections a bit
tweak some links and phrasing
fix typo in synchronize module
Merge pull request #5336 from psftw/devel

fix typo in synchronize module
Add the ansible-galaxy command
Add 1.4.2 notes to changelog
Fix current version in docsite index.rst
Add example4 to the docsite AWS guide
Fixes #5341 Use constants.py to set the roles directory
Addresses #5341 expand home directories for role_path in ansible.cfg
Addresses #5341 Expand home directories when searching for roles in ansible-playbook
Update install documentation to include httplib2

With v1.4.2 setup.py requires httplib2 for install
Fix debian builds by adding a missing ','
doc: fixed changelog format
Merge pull request #5350 from jlaska/fix_debian_builds

Fix debian builds by adding a missing ','
Merge pull request #5351 from resmo/fix/doc

doc: fixed changelog format
Merge pull request #5348 from lichesser/patch-1

Update install documentation to include httplib2
Add documentation example of using 'register' with a loop
Don't place (or higher) in the min_ansible_version