webadmin: host tab sorting

- Implemented sorting in hosts main tab
- Implemented sorting in hosts sub tabs.
  - Did NOT implement sort on Host Network Interfaces tab.

Change-Id: Icf32960b4ad0c2510da2895f86950455766b5237
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1119873
Signed-off-by: Alexander Wels <awels@redhat.com>