Remove code underlying when_* and only_if, which are deprecated features slated for removal in the 1.5 release.

port parsing errors
Fixes problesm introduced by 948d019f
Adds testcases to defend

So we set the utils default encoding to be utf8

Using
```
assert 'changed' in result
```
doesn't actually check if something is changed, which is presumably
the reason for the assertion. What is actually needed is
```
assert result.get('changed')
```
which checks that changed is set and not False. Tests still pass after
this change

This adds two parameters to the git module:

  bare (boolean)
    Indicates this is to be a bare repositori

  reference (string)
    Indicates the path or url to the reference repo.
    Check out the "--reference" option in the "git clone"
    man page

Added appropriate tests.

Revert templating enhancements from 73dbab70 e6c28658 d409352c 9858b1f2 4587528b 9b1fe455 214b0b05 8d3db803 7f9504d1 5031104c 35cb9dc2 2bd8cb57 1e85c754

Return inventory objects in the order they are presented.  Additionally, fix host slicing such that it works on Python terms with
zero indexed lists and a non-inclusive final element.

The validate option is constructed similarly to the template command's
validate option. TestRunner.py has been updated to include two new
tests, one for passing and one for failing validation.

tests shouldn't be making symlinks to system dirs, also fixes unit test report on OS X.

Instantiating the Inventory class with host_list=None now results in an
empty inventory instead of an error.

 - test part of ansible.runner.filter_plugins.core
 - test ansible.utils.unfrackpath

Implementation note: Ternery operator trick for python prior to 2.5 is used.
(test and [when_true_value] or [when_false_value])[0]
http://stackoverflow.com/questions/394809/ternary-conditional-operator-in-python#comment1466794_394887

Still compatible with user: but deprecating it so we can have
a matching remote_user: in tasks, cannot be user: because of the
module of the same name. #3932

Signed-off-by: Brian Coca <briancoca+dev@gmail.com>

covered to 100%