Description of problem:
 No provision to created, deleted and edited on the Roles using cli

Version-Release number of selected component (if applicable):
# rpm -qa | grep foreman
rubygem-hammer_cli_foreman-0.0.15-1.el6.noarch
foreman-compute-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
foreman-installer-1.4.0-0.develop.201312171100git39bac59.el6.noarch
foreman-release-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
foreman-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
foreman-libvirt-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
foreman-proxy-1.4.0-0.develop.201312091021git42bab91.el6.noarch
foreman-postgresql-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
rubygem-foreman_api-0.1.9-1.el6.noarch
foreman-ovirt-1.4.0-0.develop.201312191501gitf8e7098.el6.noarch
foreman-selinux-1.4.0-0.develop.201311220906gite342a0b.el6.noarch


How reproducible:
everytime

Steps to Reproduce:
1.The foreman manual describes about :
2. Create, Delete and Edit on the Roles page. 
4. In cli there is no provision to perform these commands
5. # hammer -u admin -p **** --help
Subcommands:
    shell                         Interactive shell
    architecture                  Manipulate Foreman's architectures.
    global_parameter              Manipulate Foreman's global parameters.
    compute_resource              Manipulate Foreman's compute resources.
    domain                        Manipulate Foreman's domains.
    sc_param                      Manipulate Foreman's smart class parameters.
    environment                   Manipulate Foreman's environments.
    fact                          Search Foreman's facts.
    report                        Browse and read reports.
    puppet_class                  Search Foreman's puppet modules.
    host                          Manipulate Foreman's hosts.
    hostgroup                     Manipulate Foreman's hostgroups.
    location                      Manipulate Foreman's locations.
    medium                        Manipulate Foreman's installation media.
    model                         Manipulate Foreman's hardware models.
    os                            Manipulate Foreman's operating system.
    organization                  Manipulate Foreman's organizations.
    partition_table               Manipulate Foreman's partition tables.
    proxy                         Manipulate Foreman's smart proxies.
    subnet                        Manipulate Foreman's subnets.
    template                      Manipulate Foreman's config templates.
    user                          Manipulate Foreman's users.


Actual results:
There is no such command as 'role'

Expected results:
Cli facility to CRUD roles 

Additional info: