Install script updates

    - Apply sysctl settings after configuring
    - Support setting gear_profile name
    - Restart Services and run oo-diagnostics after install
    - add post_deploy action
    - move run_diagnostics action to post_deploy
    - support for configuring districts
    - Update valid gear sizes on broker in post_deploy
    - Fix register host dns, other cleanup
    - Improve output to be parsed by oo-install
    - update openshift-facts after restarting services
    - Add support for setting DEFAULT_GEAR_CAPABILITIES
    - Add support for setting DEFAULT_GEAR_SIZE
    - CONF_NO_SCRAMBLE added (default to false) to revert to old
      behavior of
      setting insecure passwords.
    - Added output at the end of the script to display the
      usernames/passwords set by the install script
    - Fix references to ose-2.0
    - Enable ssh access for all host types, not just broker/node in
      install scripts
    - restart openshift-watchman with rest of services
    - move sysctl -p to end of configure_openshift
<oo-install>turning oo-install openshift.sh into a symlink
<oo-install>Support for gear profiles/districts/setting passwords

- Add restart_services to configure steps for a host
- add post_deploy step for broker/nodes
- Initial support for setting gear_profile
- add support for valid gear sizes and district mappings
- Run host dns configuration every time installer is run
- make URLs configurable based on version
- Prompt for district/node questions when adding the node role to an
  existing host.
- only ask district/node questions if context is :ose
- Set ose-2.1 as the default for the ose context
- update for github raw URL change
- add an environment variable to use local openshift.sh script
- make sure to dereference links when copying oo-install directory to
  tmp directory
- use working_branch for base build
- add new run_diagnostics step
- Remove comment about rebooting systems
- add support for setting default_gear_capabilities and default_gear_size on broker
- allow for setting service passwords
- generate random passwords if user choses not to select
- refactor environment variable configuration
- Fix shellescape for nil
- Fix bail code for scp in run_on_host
- refactor launcher.rb to use local_exec! and ssh_exec!
- add flag to display output line by line for local_exec! and ssh_exec
- update workflows.yml for correct ose version
Merge pull request #333 from detiber/installerFixes

Installer updates for Enterprise 2.1