Cast the retrieved `retries` var to an int before incrementing as it may be in string form.

For example, the following method of calculating the value will result in a type error:

    appstatus_waitfor: 4  # Minutes
    appstatus_delay: 5 # seconds
    appstatus_retries: "{{ mins * 60 / delay }}"
Fix issue #5214: hostname persistence on RedHat/CentOS
Fix link to playbooks loops
apt: update index before trying to autoinstall python-apt
copy ssh.py to ssh_alt.py
Account for instances that have not yet been registered. Fixes #5076
ssh_alt.py / decrease # of ssh roundtrips
Update CHANGELOG.md

Fix typo in ANSIBLE_FORCE_COLOR
Revert "ssh_alt.py / decrease # of ssh roundtrips"

This reverts commit 7f8863f96db53144c73dfb79edce5173fa362b35.
Had to revert commits due to async.