Revision 958

Account for gnome-keyring plugin - install it, but don't treat it as a
shared library, don't install the .a or .la, and in particular, don't
generate dependencies for it.  The theory is that if you don't have the
dependencies, the plugin won't work (the rest of libsvn1 will be fine)
... but it wouldn't have done you any good anyway because clearly you
aren't runnin gnome-keyring anyway.

I begin to think I need a /usr/lib/svn in which to put all the
non-public libraries: libsvn_{swig,ra,fs,auth}_*.