* set is_public 'true' or 'false'
Despite being a boolean property, https://github.com/melta/boto/blob/master/boto/ec2/image.py:63 sets is_public = True only if the argument is passed in as the string 'true'. Likewise for False/'false'.
This is a workaround for that bug in boto2, to allow the documented parameter to work with valid yaml values.
fixes#5600
* only set is_public if true
* Fix docs to specify when python2.6+ is required (due to a library
dep). This helps us know when it is okay to use python2.6+ syntax in
the file.
* remove BabyJson returns. See #1211 This commit fixes all but the
openstack modules.
* Use if __name__ == '__main__' to only run the main part of the module
if the module is run as a program. This allows for the potential to
unittest the code later.
