fix integration test
fix npe while applying a group

java.lang.NullPointerException
null
lcmc.gui.resources.crm.GroupInfo.apply(GroupInfo.java:330)
lcmc.gui.resources.crm.ServiceInfo$14.mouseOver(ServiceInfo.java:2667)
lcmc.gui.resources.Info$10$1.run(Info.java:720)
fix bug in VirtualDomain service menu

null
lcmc.gui.resources.crm.VirtualDomainMenu.getPulldownMenu(VirtualDomainMenu.java:27)
lcmc.gui.resources.crm.VirtualDomainInfo.createPopup(VirtualDomainInfo.java:146)
lcmc.gui.resources.crm.VirtualDomainMenu.getPulldownMenu(VirtualDomainMenu.java:27)
lcmc.gui.resources.crm.VirtualDomainInfo.createPopup(VirtualDomainInfo.java:146)
fix integration test
drbd: fix escaping in created config
drbd: fix address null check

java.lang.NullPointerException
null
lcmc.gui.resources.drbd.ResourceInfo.getNetInterfaceWithPort(ResourceInfo.java:1830)
lcmc.gui.resources.drbd.ResourceInfo.drbdResourceConfig(ResourceInfo.java:296)
lcmc.gui.resources.drbd.GlobalInfo.createDrbdConfig(GlobalInfo.java:930)
lcmc.gui.resources.drbd.GlobalInfo.createConfigDryRun(GlobalInfo.java:243)
lcmc.gui.resources.drbd.GlobalInfo.createDrbdConfigLive(GlobalInfo.java:187)
lcmc.gui.resources.drbd.ResourceInfo$2$1.run(ResourceInfo.java:619)
fix visual problem with "operating mode" and "advanced button"
cleanup: remove unused code, fix warnings