Bug 680131: Replace the MPL 1.1 license by the MPL 2.0 one in all files, and add it to files which miss one
r=kiko r=mkanat r=mrbball a=LpSolit

Bug 251656: Redesign dependency tree, part 1: fix the tree itself - Patch by André Batosti <batosti@async.com.br> r=myk r=LpSolit a=justdave