Fix merge_attrs, so that not (e.g.) two medianr attributes show up in
-rw-r--r-- 5058 CMakeLists.txt
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-rw-r--r-- 1381 LICENSE.BSD
-rw-r--r-- 787 Makefile.cvs
-rw-r--r-- 869 README
-rw-r--r-- 1623 VERSION.cmake
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