The 'test/Makefile' had the '..' directory in the include path, which caused the 'HYPRE_config.h' file to be included from two different places (in '..' and in 'install'). In the spack autotest, this caused a conflict.
* Check that 'git describe' works in autoconf build
* Updated versioncheck tests to work when 'git describe' fails
* Updated CMake build to work when 'git describe' fails
* Update autotest filters to ignore error messages from 'git describe'
