Peter Scheibel d76c923623 1. Rename CommandError -> InstallError ... 2. InstallError now subclasses SpackError vs. StandardError (so it is now handled by the spack shell script)		2015-10-23 16:18:06 -07:00
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spack	1. Rename CommandError -> InstallError	2015-10-23 16:18:06 -07:00