Peter Scheibel ea872f8098 1. Added CommandError exception to build_environment ... 2. The parent of a failed child process in build_environment.fork no longer calls sys.exit - instead it raises a CommandError (from [1]) 3. test-install command now attempts to install all packages even if one fails		2015-10-22 17:44:16 -07:00
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spack	1. Added CommandError exception to build_environment	2015-10-22 17:44:16 -07:00