UPDATE 1-Dropbox targets deep-pocketed businesses to increase revenue

(New throughout, adds update on Dropbox revenue and analyst comment) By Heather Somerville SAN FRANCISCO, Jan 30 (Reuters) - A decade after its founding as a file-sharing business, Dropbox Inc is trying to become a new kind of company. On Monday, the highly valued digital storage firm unveiled two new products - file synch and content collaboration tools - as part of a years-long effort to build up its business offerings. The effort appears to have bolstered the company's botto