8178380: Module system implementation refresh (5/2017)
Reviewed-by: mchung, alanb, sspitsyn
Contributed-by: alan.bateman@oracle.com, mandy.chung@oracle.com, chris.hegarty@oracle.com

8157236: attach on ARMv7 fails with com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file
Summary: Add more diagnostic to attach code
Reviewed-by: dholmes, alanb

8055230: Rename attach provider implementation class be platform neutral
Reviewed-by: alanb, chegar, dfuchs, dholmes, erikj, sla