3.0.2 update

Update to enable configuring tower-cli via environment variables.

Add custom SSL certificate support

Several issues mentions demand for this functionality, so we make it a separate patch.

• Custom SSL certificate support added
• docs/CONFIG_CMD_OPTIONS.md added as a reference for all available configuration parameters.

Major Release for Tower3.0

• Added text indicator for resource change
• Allow hosts, inventory, and groups to use variables from the command line
  and denote a file by starting with "@"
• Added resource role for tower3.0 and permission for previous tower versions
• Added notification templates
• Added labels
• Added description display option
• Added deprecation warnings
• Help text upgrades
• Give indication of "changed" apart from color
• New credential fields to support openstack-v2, networking and azure
• New options for inventory source/group. Add implicit resource inventory
  script.
• credential updates (no longer require user/team)
• Added support for system auditors
• projects (do not post to organizations/N/projects)
• prompt-for JT fields + job launch options (allow blank inventory too)
• Update the POST protocol for associate and disassociate actions
• New job launch option for backwards compatibility
• New tower-cli option to display tower-cli version
• Enhanced debug log format (support multi-line debug log)

2.3.2 Minor Release

• Add RPM specfile and Makefile
• Tower compatibility fixes
• Allow scan JTs as an option for "job_type"
• Add ability to create group as subgroup of another group
• Add YAML output format against JSON and humanized output formats
• Add SSL corner case error handling and suggestion
• Allow resource disassociation with "null"

Bug fixes

This is a minor bug fix release that addresses the largest pain points observed since the 2.3.0 release. Those fixes include:

• Fixed bug affecting force-on-exists and fail_on_found options
• Changed extra_vars behavior to be more compliant by re-parsing vars,
  even when only one source exists
• Fixed group modify bug, avoid sending unwanted fields in modify requests

Ad-Hoc Commands, Various bug Fixes and Smaller Improvements

• Fixed an issue where the settings file could be world readable
• Added the ability to associate a project with an organization
• Added setting "verify_ssl" to disallow insecure connections
• Added support for additional cloud credentials
• Exposed additional options for a cloud inventory source
• Combined " launch-time extra_vars" with " job_template extra_vars"
  for older Tower versions
• Changed the extra_vars parameters to align with Ansible parameter
  handling
• Added the ability to run ad hoc commands
• Included more detail when displaying job information
• Added an example bash script to demonstrate tower-cli usage