Request for Bulk Approval - backport tools test stabilization changes from JDK8

[Chris Hegarty]

This is a bulk request for approval to backport several tools test 
stabilization changes from JDK8 to 7u-dev. Original authors and 
reviewers cc'ed.

These changes address several constant and persistent failures, on all 
platforms, in the tools area. Specifically the jdk_tools target:
    FAILED: sun/tools/jcmd/jcmd-big-script.sh
    FAILED: sun/tools/jcmd/jcmd-pid.sh
    FAILED: sun/tools/jinfo/Basic.sh
    FAILED: sun/tools/jmap/Basic.sh
    FAILED: sun/tools/jps/jps-Vvml_2.sh
    FAILED: sun/tools/jps/jps-m_2.sh
    FAILED: sun/tools/jstack/Basic.sh

All changes are in JDK8, and all changesets are identical, with one 
minor exception as noted below.

7144833: sun/tools/jcmd/jcmd-Defaults.sh failing intermittently
   http://hg.openjdk.java.net/jdk8/tl/jdk/rev/59884f656b7d
   *No update to the ProblemList.txt*. The jdk8 change removed two tests
   from the ProblemList. One for a test excluded because of 7144833,
   which is now fixed and was never on the ProblemList in 7u-dev. I will
   do some testing and file a separate CR to remove the second test from
   the ProblemList, if appropriate.

7154114: jstat tests failing on non-english locales
7154113: jcmd, jps and jstat tests failing when there are unknown Java 
processes on the system
   http://hg.openjdk.java.net/jdk8/tl/jdk/rev/2dc35f14bf17

8001621: Update awk scripts that check output from jps/jcmd
   http://hg.openjdk.java.net/jdk8/tl/jdk/rev/d1ffbdf7e3c6

7194035: update tests for upcoming changes for jtreg
   http://hg.openjdk.java.net/jdk8/tl/jdk/rev/997e0d6238b7

-Chris.