By Frank Jack Daniel NEW DELHI (Reuters) - Chinese Premier Li Keqiang is seeking to build trust with India on his first foreign trip since taking office, which comes just a few weeks after a military standoff between the Asian giants on their ill-defined border in the Himalayan mountains. The number two in the Chinese leadership offered India a "handshake across the Himalayas" in an editorial published on Monday in The Hindu newspaper and said that together the emerging economic giants could become a new engine of the world economy. ...