webadmin: fix alignment in New Cluster dialog / Scheduling policy

New Cluster dialog / Scheduling policy tab had alignment and spacing issues.
Fixed.

Change-Id: I6dfac25cb6684184ab532302f1836ccd85dd5c9b
Bug-Url: https://bugzilla.redhat.com/1123319
Signed-off-by: Greg Sheremeta <gshereme@redhat.com>