Improve interlaced output prevention when asking for host key approval.
Talk more about transports in documentation.
Mention envrionment variable configuration.
Merge pull request #3444 from skvidal/yumopt

- optimize for the extremely common case of people specifying pkg names ...
Document 'smart' option and connection type default changes.
Update the releases list.

Conflicts:

	RELEASES.txt
Update packaging changelogs.

Conflicts:

	packaging/rpm/ansible.spec
Merge in release notes from 1.2.1
add a '*' option for name to state=latest to do a global update