ci: Add .travis.yml (for ubuntu only)

refs: #1117

Change-Id: I42495bef47ce52431b11480f686fd6dc0f0608a9
mgmt: Added skeleton for InternalFace

refs: #1137

Change-Id: I5aab5a9cac8da5f31603fb755b934347b63045eb
core: move event-emitter to core

Change-Id: I76f6fc7d8c4731bbbb95ea257e339e15b96dbea1