this patch bumps the version number of libsss_idmap and should be aplied
to master and 1-11 to keep them in sync.
Currently the version is libsss_idmap.so.0.3.0 and after the patch it
should be libsss_idmap.so.0.4.0.
The doc changes from 3b35ff47651e4893ce537a273466766b962362da are
currently missing in 1.11. I'm not sure if the aptch should be applied
to 1.11? On one hand only typos in the docs are fixed on the other hand
only typos in the docs are fixed :-)