ger: fix wording "eine Wert"
ger: fix typo: CouchDB
ger: fix typo "Dokument"
ger: sometimes "Ihre" is not written downcase

Even with the new German spelling rules "Ihre" is written with
a capital letter, if you are are calling people with "Sie"
according to the duden.
ger: sometimes "Sie" is not written downcase

Even with the new German spelling rules "Sie" ("Höflichkeitsanrede")
is written with a capital letter in the beginning
according to the duden. "du (sing), ihr (plur)" can be written
lowercase
Merge pull request #497 from robertkowalski/ger-api

Small collection of fixes for the german version of api.html