Log Message:
tex-babel-german: update to 2.10

 New in v. 2.10:

  * Introduce option (modifier and boolean switch) to let [n]swissgerman
    expand the �<9F>-related shortcuts "s and "z to digraphs \ 
(<ss>, <sz>)

  * Document the existence and use of the experimental hyphenation
    patterns for German (dehyph-exptl)

  * Improve the manual