vchoi_fork

[svn-r21260] Refactored shape same tests heavily, and added code to skip a configurable 
fraction of the subtests depending on the current express test level.  Also
added code to display fraction of subtests skipped.

The current tables controlling the fraction of tests skipped as a function 
of express test level is a guess at what will be needed.  It will be necessary
to tune this table against the express test targets and our worst case system.


Initially commit tested on Jam, Koala, and Heiwa, but ran into an unrelated
failure on Heiwa (bug reported).  Replaced Heiws with Linew and got a clean
h5commit test.

Also tested parallel on Koala.  Initially got very bad results (test timed out
roughly 1/3 to 1/2 the way through).  Discussed matters with Matthew, and moved
the build to the solid state drive on Koala.  This dealt with the performance
issues completely.