Sibl

- Fixes a bug in accelerate mode which caused a traceback when trying to use that connection method.
- Fixes a bug in vault where the password file option was not being used correctly internally.
- Improved multi-line parsing when using YAML literal blocks (using > or |).
- Fixed a bug with the file module and the creation of relative symlinks.
- Fixed a bug where checkmode was not being honoured during the templating of files.
- Other various bug fixes.

- Security fix to disallow specifying 'args:' as a string, which could allow the insertion of extra module parameters through variables.
- Performance enhancements related to previous security fixes, which could cause slowness when modules returned very large JSON results. This specifically impacted the unarchive module frequently, which returns the details of all unarchived files in the result.
- Docker module bug fixes:
* Fixed support for specifying rw/ro bind modes for volumes
* Fixed support for allowing the tag in the image parameter
- Various other bug fixes

Major new features:

* Windows support (alpha) using native PowerShell remoting
* Tasks can now specify `run_once: true`, meaning they will be executed exactly once. This can be combined with delegate_to to trigger actions you want done just the one time versus for every host in inventory.

New inventory scripts:

* SoftLayer
* Windows Azure

New Modules:

- cloud
* azure
* rax_meta
* rax_scaling_group
* rax_scaling_policy
- windows
* *version of setup module*
* *version of slurp module*
* win_feature
* win_get_url
* win_group
* win_msi
* win_ping
* win_service
* win_user

Other notable changes:

* Security fixes
- Prevent the use of lookups when using legacy "{{ }}" syntax around variables and with_* loops.
- Remove relative paths in TAR-archived file names used by ansible-galaxy.
* Inventory speed improvements for very large inventories.
* Vault password files can now be executable, to support scripts that fetch the vault password.

- Fixes an issue with the copy module when copying a directory that fails when changing file attributes and the target file already exists
- Improved unicode handling when splitting args

- Further improvements to module parameter parsing to address additional regressions caused by security fixes

- Corrects a regression in the way shell and command parameters were being parsed