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
<oo-install>turning oo-install openshift.sh into a symlink
<oo-install>Support for gear profiles/districts

- 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
Support scrambled passwords by default with install scripts

- 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
<oo-install> service password support

- allow for setting service passwords
- generate random passwords if user choses not to select
- refactor environment variable configuration
- Fix shellescape for nil