Bug 1154179

Description of problem:
One usability complaint against subscription-manager are all of the difficult to read command line options that are composed of multiple words (e.g. --servicelevel)  These can be improved by inserting a dash between the words (e.g. --service-level).

Beware: As many command line options are changed, a few other updates also need to be made...
  bash-completion
  man pages
  a deprecated warning when attempting to use the former option should be printed to stderr, but still pass through and execute the command
  

Version-Release number of selected component (if applicable):
[root@jsefler-7 ~]# subscription-manager version
server type: Red Hat Subscription Management
subscription management server: 0.9.26-1
subscription management rules: 5.11
subscription-manager: 1.13.3-1.el7
python-rhsm: 1.13.2.1-2.el7


How reproducible:


Steps to Reproduce:
After going through the CLI --help messages, I found all of these options that could be improved...


Actual results:
  --proxyuser=PROXY_USER
  --proxypassword=PROXY_PASSWORD
  --serverurl=SERVER_URL
  --serverurl=SERVERURL
  --ondate=ON_DATE
  --autoheal
  -s SERVICELEVEL, --servicelevel=SERVICELEVEL
  --servicelevel=SERVICE_LEVEL
  --listslots
  --listhooks
  --activationkey=ACTIVATION_KEYS
  --consumerid=SYSTEMID
  --name=SYSTEMNAME
  --type=UNITTYPE
  --baseurl=BASE_URL

Expected results:
  --proxy-user=PROXY_USER
  --proxy-password=PROXY_PASSWORD
  --server-url=SERVER_URL
  --server-url=SERVER_URL
  --on-date=ON_DATE
  --auto-heal
  -s SERVICE_LEVEL, --service-level=SERVICE_LEVEL
  --service-level=SERVICE_LEVEL
  --list-slots
  --list-hooks
  --activation-key=ACTIVATION_KEYS
  --consumer-id=SYSTEMID
  --name=SYSTEM-NAME
  --type=UNIT_TYPE
  --base-url=BASE_URL