issue #25: exit status of `exec` was not being checked.

  `exec` was run in background, so normal exit handling
  was not invoked ... adding explicit exit status check
issue #25: tweak script
try using wait to determine exit status of execed child
travis excript not exitting with error ... suspicious ... more logging
tweak again
add explicit exit status checks to force test failure when a script fails
fix sytax on exit statements
tweakalicious
something fishy is going on...
better echo?
random attempts at getting echo to be accepted
another variation on wait command
okay I think I have it now ... issue_25
add uname -a and fix error message
Merge pull request #26 from dalehenrich/issue_25

Issue 25 bugfix ... test are supposed to fail now that 64 bits are being used ...