8169069: Module system implementation refresh (11/2016)
Reviewed-by: mcimadamore, jjg, mchung, anazarov
Contributed-by: jonathan.gibbons@oracle.com, jan.lahoda@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com, bhavesh.x.patel@oracle.com, andrey.x.nazarov@oracle.com

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8006775: JSR 308: Compiler changes in JDK8
Reviewed-by: jjg
Contributed-by: mernst@cs.washington.edu, wmdietl@cs.washington.edu, mpapi@csail.mit.edu, mahmood@notnoop.com

6962318: Update copyright year
Reviewed-by: xdono

6570730: com.sun.source.tree.ModifiersTree.getFlags() should return class type
Reviewed-by: mcimadamore