Since the classes that make up a grid implementation are now completely

hidden behind the interface (with the exception of the grid classes
themselves) they are of no interest to anyone except their maintainers.
Therefore I take out the implementation of UGGrid and OneDGrid from
the doxygen documentation.

[[Imported from SVN: r1519]]

doc/Doxyfile

@@ -390,7 +390,8 @@ 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                = 
+EXCLUDE                =  ../grid/onedgrid \
+                          ../grid/uggrid
 
 # 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.