* Added `ansible_env` to the list of facts returned by the setup module.
* Added `state=touch` to the file module, which functions similarly to the command-line version of `touch`.
* Added a -vvvv level, which will show SSH client debugging information in the event of a failure.
* Includes now support the more standard syntax, similar to that of role includes and dependencies. It is no longer necessary to specify a special "vas" field for the variables passed to the include.
* Includes now support the more standard syntax, similar to that of role includes and dependencies. It is no longer necessary to specify a special "vars" field for the variables passed to the include.
* Changed the `user:` parameter on plays to `remote_user:` to prevent confusion with the module of the same name. Still backwards compatible on play parameters.
* Added parameter to allow the fetch module to skip the md5 validation step ('validate_md5=false'). This is usefull when fetching files that are actively being written to, such as live log files.
* Inventory hosts are used in the order they appear in the inventory.
* in hosts: foo[2-5] type syntax, the iterators now are zero indexed and the last index is non-inclusive, to match Python standards.