Description of problem:
NetworkManager has an unnecessary explicit bind dependency:
Requires: caching-nameserver
[...]
Requires: bind >= %{bind_version}

Version-Release number of selected component (if applicable):
0.6.0-3

How reproducible:
Always

Steps to Reproduce:
1. yum install NetworkManager
  
Actual results:
bind gets installed

Expected results:
bind, according to Dan Williams isn't necessary for NM to function,
hence it shouldn't be a required dependency.