Fixed readme for fuelweb test
Added some code into kickstart template in order to solve large disks problem on master node
Made master node / partetion to be located on lvm, and made /var as a separate xfs lvm partition
Added manual grub geometry
Added zerombr into ks.template
document more nailgun unit tests dependencies
isInteger utility for networks validation
isNaturalNumber util
New Node Design
Rework Nodes Tab (WIP)
Multiple roles in nailgun - WIP
Multiple roles in nailgun - WIP
Fix UI tests
Temporary disable role validation due to incorrect work
Multiroles js (WIP)
Store cluster grouping mode
Discard node changes link
Rework internal role representation, strictly validate node roles (breaks lots of tests)
Implement pending_roles correctly
Assign cluster_id to nodes first to handle roles correctly. Remove single node from cluster correctly