8157606: deprecate com.sun.javadoc API
Reviewed-by: ksrini

8157608: deprecate old entry points for javadoc tool
Reviewed-by: ksrini

8075703: jdk.javadoc module exports com.sun.tools.javadoc package which contains a lot of internal API.
Reviewed-by: ksrini

8081854: Javadoc should generate named anchors for HTML4 output
Reviewed-by: ksrini

8072945: Javadoc should generate valid and compliant HTML5 output
Reviewed-by: jjg, ksrini

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com