Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1131659
Description of problem:

Cannot create host if the domain name starts with "."

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

How reproducible:
100%

Steps to Reproduce:
1. Create a new domain starting with "." (.mydomain.com)
2. Try to create a new host using the domain
3. webUI says invalid name

Actual results:

The webUI says the system name is invalid

Expected results:

The webUI should parse if the domain name starts with "."