Use Keychain and KWallet in JavaHL.
Use Keychain and KWallet in JavaHL.

* subversion/libsvn_subr/cmdline.c
  (get_auth_simple_provider): Copy from here ...
* subversion/bindings/javahl/native/SVNClient.cpp
  (get_auth_simple_provider): ... to here.

* subversion/bindings/javahl/native/SVNClient.cpp
  (SVNClient::getContext): Use Keychain and KWallet providers.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion