fixed tests.foreman.cli.test_subscription
rhel6/rhel7 tomcat restart
comments accounted for
Merge pull request #1165 from AdamSaleh/manifest-review

Manifest mock, and fixed tests.foreman.cli.test_subscription
Add class robottelo.orm.EntityReadMixin

Create a mixin class named `EntityReadMixin`. This mixin adds a method named
`read` to classes that use it. The `read` method returns an entity object whose
attributes have been populated using info fetched from Foreman.

Add a test for this new mixin.
Merge pull request #1259 from Ichimonji10/entity-read-mixin

Add class robottelo.orm.EntityReadMixin