The JP Morgan Healthcare Conference, which is being held in San Francisco this year, has been much more active than last year. Among some of the top news at the conference were M&A deal announcements by J&J (JNJ) , Eli Lilly (LLY) and GSK (GSK) .While J&J announced a big deal to acquire neuroscience company Intra-Cellular Therapies (ITCI) , Lilly and GSK announced smaller deals.J&J Offers to Buy ITCI for $14BThe drug and medical devices giant entered into a definitive agreement to acquire Intra-Cellular The ...