Add third-party changes w.r.t. server-manager UI.

Change-Id: I65e2383c6fa8fc75ec2b66a306b86e15b6c298c4
Updated path for ipv6 npm module to get from contrail-third-party-cache
repo
Added requireJS third-party module (require.js)

Change-Id: Iea14627fc308787886d855be178979f753ee1345
Merge "Add third-party changes w.r.t. server-manager UI."
Merge pull request #15 from Juniper/master

Pull changes from Juniper/third-party to absingla/third-party