Fixing Lifecycle-Environments CLI tests.

Katello nightly (community upstream) has pushed an update where CLI and
possibly API uses the numeric ID for an organization and not its label.
This pull requests fixes LifeCycle-Environment tests only.

```bash
$ nosetests -c robottelo.properties tests/foreman/cli/test_lifecycleenvironment.py

@Test: Search lifecycle environment via its name containing UTF-8 chars ... SKIP: Test skipped due to #1077333 ASSIGNED   - Tomas Strachota - Cannot search lifecycle environment via its name if using UTF-8 characters
@Test: List subcommand returns standard output ... ok
@Test: Create lifecycle environment with valid name, prior to Library ... ok
@Test: Create lifecycle environment with valid name and description, ... ok
@Test: Create lifecycle environment with valid name, prior to Library ... ok
@Test: Create lifecycle environment then update its name ... SKIP: Test skipped due to #1095937 NEW        - Katello Bug Bin - Updating a lifecycle-environment name by passing an id raises an error
@Test: Create lifecycle environment then update its description ... SKIP: Test skipped due to #1095937 NEW        - Katello Bug Bin - Updating a lifecycle-environment name by passing an id raises an error

----------------------------------------------------------------------
XML: foreman-results.xml
----------------------------------------------------------------------
Ran 7 tests in 80.228s

OK (SKIP=3)
```
Updated Org Label to Org ID for CLI.

Updated all methods that were passing the Organization 'label' as the
Organization 'ID' since upstream has now made this change.

This fixes issue #833.
ContentView CLI tests now use Org ID.

Fixes issue #834 and makes sure that Organization 'ID' is used instead
of 'Label'.
ContentHost CLI tests now use Org ID.

Fixes issue #840 and makes sure that Organization 'ID' is used instead
of 'Label'.
GPGKey CLI tests now use Org ID.
HostCollection CLI tests now use Org ID.
Product CLI tests now use Org ID.
Repository CLI tests now use Org ID.
Subscription CLI tests now use Org ID.
SyncPlan CLI tests now use Org ID.
API records now use Org ID.
Merge pull request #844 from omaciel/use-org-id

Use numeric org ID instead of LABEL
Rename system group to host collection on API
Merge pull request #845 from elyezer/api-rename-system-group

Rename system group to host collection on API
Fix System import error

Comment content view test_custom_cv_subscribe_system test and fail it
until the system record is created.
Merge pull request #846 from elyezer/api-fix-import-error

Fix System import error
Add bzbug to lifecycle environment related tests

This is due not being able to create a lifecycle environment
Merge pull request #848 from elyezer/lifecycle-environment-bzbug

Add bzbug to lifecycle environment related tests
Adding CLI tests for updating a User's login.

We did not have any tests for updating a User's login via the CLI, but
that may be because you were not allowed to do that before.

```bash
$ nosetests -c robottelo.properties -m test_positive_update_user_2 tests/foreman/cli/test_user.py
2014-05-21 14:38:51 - robottelo - INFO - Paramiko instance prepared (and would be reused): 0x10e875d10
2014-05-21 14:38:55 - root - DEBUG - #1070730 NEW        - satellite6-bugs - User email validation doesn't exactly match specification
2014-05-21 14:38:55 - root - DEBUG - #1070730 NEW        - satellite6-bugs - User email validation doesn't exactly match specification
@Test: Update User with all Compute Resources ... SKIP: Test not implemented
@Test: Update User with one Host group ... SKIP: Test not implemented
@Test: Update User with multiple Host groups ... SKIP: Test not implemented
@Test: Update User with all Host groups ... SKIP: Test not implemented
@Test: Assign a User to an Org ... SKIP: Test not implemented
@Test: Assign a User to multiple Orgs ... SKIP: Test not implemented
@Test: Assign a User to all available Orgs ... SKIP: Test not implemented
@Test: Update User with a new Fact filter ... SKIP: Test not implemented
@Test: Update Login in User ... ok
@Test: Update Login in User ... ok
@Test: Update Login in User ... ok
@Test: Update Login in User ... ok
@Test: Update Login in User ... ok
@Test: Update Login in User ... ok

----------------------------------------------------------------------
XML: foreman-results.xml
----------------------------------------------------------------------
Ran 14 tests in 178.909s

OK (SKIP=8)
```
Merge pull request #849 from omaciel/update-user-login-cli

Adding CLI tests for updating a User's login.