hg: build-infra/jdk8: Introduce new logging level "verbose", and set IDL Compilation output to

[magnus.ihse.bursie at oracle.com]

Changeset: 6d391a8110e7
Author:    ihse
Date:      2012-10-10 02:09 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/6d391a8110e7

Introduce new logging level "verbose", and set IDL Compilation output to
verbose level.

! common/makefiles/IdlCompilation.gmk
! common/makefiles/MakeBase.gmk
! common/makefiles/MakeHelpers.gmk