Installer updates for Enterprise 2.1

 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

The openshift.sh script used by oo-install is now 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
    - allow for setting service passwords
    - generate random passwords if user choses not to select
    - refactor environment variable configuration
    - Fix shellescape for nil