Add Jinja2 filter |bool : return boolean interpretation of the value

'yes', 'on', '1', 'true', insensitively, and 1 are true,
 everything else is false
Fix service enable on FreeBSD

Some services have a knob (i.e. rc.conf setting) whose name
differs from that of the script. For example, lockd process
is controlled with a script called lockd, but the rc.conf
value is rpc_lockd_enable.

Fixes issue #3382.
Make the CPU facts Hyperthreading aware
Makes host key checking the default behavior but can be disabled in ansible.cfg or by environment variable.
Example config file should use correct config setting.
Fix git submodule update when version specified
Enable paramiko to ask whether to add keys to known hosts.
Closing stdin too early.
Close the named temporary file.
Lock around SSH connectivity to new hosts in host checking mode such that prompts for host approval
messages do not get interlaced.
Use .encode() instead of str() to support unicode arguments.

str() throws an UnicodeEncodeError for code points that cannot be
represented in 7-bit ASCII. This makes it impossible to use any
non-ASCII characters in module arguments. Using encode('utf-8')
gives the desired result.
Default to 'smart' transport, which will use OpenSSH if it can support ControlPersist.
- optimize for the extremely common case of people specifying pkg names which are, ultimately, already installed
  on a system here time went from  16s for a series of pkgs to 3s to just
  check that they were installed.
Improve interlaced output prevention when asking for host key approval.
Talk more about transports in documentation.
Mention envrionment variable configuration.
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