update the mailing list and issues links [skip ci]

README.rst

@@ -46,5 +46,5 @@ development `mailing list`_.
 .. Place your references here:
 .. _bob: https://www.idiap.ch/software/bob
 .. _installation: https://www.idiap.ch/software/bob/install
-.. _mailing list: https://groups.google.com/forum/?fromgroups#!forum/bob-devel
+.. _mailing list: https://www.idiap.ch/software/bob/discuss
 .. _user guide: http://pythonhosted.org/bob.bio.base

doc/links.rst

@@ -18,4 +18,4 @@
 .. _xfacereclib.extension.csu: http://pypi.python.org/pypi/xfacereclib.extension.CSU
 .. _virtualbox: https://www.virtualbox.org
 .. _hdf5: http://www.hdfgroup.org/HDF5
-.. _mailing list: https://groups.google.com/forum/?fromgroups#!forum/bob-devel
+.. _mailing list: https://www.idiap.ch/software/bob/discuss