Make sure action plugin copy cleans up tmp dir

The copy action plugin creates its own tmp dir for each file that it
copies to the target machine.  However, it does not clean up the
original tmp path it was given when run() is called.  This cleans up the
tmp path before it begins looping on source files.

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