Description of problem:

At âQuorum Votesâ in the Node Properites dialog box, there is no limit
to the integer value that can be entered. There is, however, a check
for non-integer input that causes a the following error message to be
diaplayed: 
Valid values for the votes field are integer values between zero and
255, or nothing, which defaults to 1.

Version-Release number of selected component (if applicable):
system-config-cluster-0.9.5-1.0


How reproducible:


Steps to Reproduce:
1. Navigate: Cluster -> Cluster Nodes -> Add Cluster Node 
   -OR-
   Cluster -> Cluster Nodes -> <node name> Edit Node Properites
2. At the Node Properties dialog box, enter an out-of-range integer
   into the "Quorum Votes" text box:
   256
3. Save configuration file to /etc/cluster/cluster.conf.
4. Observe the Quoarum Votes parameter "256" in
   /etc/cluster/cluster.conf.
  
Actual results:
Integer out of range of the 0-255 value is accepted without admonition.

Expected results:
Expected a warning message dialog box to be displayed similar to the
admonition for entering a non-integer parameter into the "Quorum
Votes" text box.

Additional info: