don't doc the tests

[[Imported from SVN: r2120]]

doc/doxygen/Doxyfile

@@ -390,8 +390,13 @@ RECURSIVE              = YES
 # excluded from the INPUT source files. This way you can easily exclude a 
 # subdirectory from a directory tree whose root is specified with the INPUT tag.
 
-EXCLUDE                =  ../grid/onedgrid \
-                          ../grid/uggrid
+EXCLUDE                =  ../../grid/onedgrid \
+                          ../../grid/uggrid \
+                          ../../grid/test \
+                          ../../istl/test \
+                          ../../istl/paamg/test \
+                          ../../lib/test \
+                          ../../common/test
 
 # The EXCLUDE_SYMLINKS tag can be used select whether or not files or directories 
 # that are symbolic links (a Unix filesystem feature) are excluded from the input.