Some minor tweaks to make things a little more tutorial-like, moved credentials section up higher, etc.

Fix rst warnings in playbooks_loops.rst

setup.py: fix ansible-galaxy was not installed when using make install

add var for format.

This reverts commit 3b2a35ae.

Add a -v/--verbose option to ansible-pull to allow passing -vvvv to
ansible-playbook and to show stdout while the playbook executes

Do not place (or higher) in min_ansible_version

Update install documentation to include httplib2

doc: fixed changelog format

Fix debian builds by adding a missing ','

With v1.4.2 setup.py requires httplib2 for install