Description of problem:
In Smart Class-> Smart Variables tab, Creating smart variable with name having period or special character makes smart variable not to view, edit and delete.

Version-Release number of selected component (if applicable):
foreman-1.11.0-0.develop.201510151605git8893c3b.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. Create a smart variable from tab Configure > Classes> smart class -> Smart variables tab with name having period or special character in it.

Actual results:
Smart variable with period or special character makes smart variable not to view, edit and delete.

Expected results:
Smart Variable with period or special character should be able to view, edit or delete from Configure > Classes> smart class -> Smart variables tab.

Additional info:
I am able to view, edit or delete the same smart variable(created with period or special characters) from Configure -> Smart Variables.