Removing all the third-party modules for ui from contrail-third-party repo, removal of nodejs is tracked by some other commit

Change-Id: I40aa425a82582a4d4f68b88cc3e7ad30ea395b27
Support for async send to ifmap server. Cherry-picked from R1.06

Change-Id: Ie3448df952195acdbb7c9dd04e2fccb3c8a0c056
readme file