Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1291730
Description of problem:
Separate Smart variables and Smart parameters for class/classes in Host/HostGroup -> Parameters tab.
Its very confusing there to identify which is variable and which is parameter.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Override a parameter value of class 'something' to display in Host/HostGroup -> Parameters tab.
2. Create a new Smart variable in class 'something' to display in Host/HostGroup -> Parameters tab.
3. Go to Host/HostGroup -> Parameters tab.

Actual results:
The smart variable and smart class parameters lists together, which is very difficult to understand which is what. At least when we will have large number of parameters and variables in class.

Expected results:

Additional info: