Changes since 1.5:
- Fix validate_certs and run_command errors from previous release
- Fixes to the git module related to host key checking
- Fix module errors in airbrake and apt from previous release
- Force command action to not be executed by the shell unless specifically enabled.
- Validate SSL certs accessed through urllib*.
- Implement new default cipher class AES256 in ansible-vault.
- Misc bug fixes.
OK aja@
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