-Fix: API docs

git-svn-id: http://svn.openttd.org/trunk@26915 6aa0318a-3be1-0310-93fa-89fd2396df07
-Update from WebTranslator v3.0:
afrikaans - 13 changes by mulderpf
catalan - 24 changes by juanjo
spanish - 3 changes by SilverSurferZzZ


git-svn-id: http://svn.openttd.org/trunk@26916 6aa0318a-3be1-0310-93fa-89fd2396df07
-Revert (r26857): It broke improved loading.

git-svn-id: http://svn.openttd.org/trunk@26917 6aa0318a-3be1-0310-93fa-89fd2396df07
-Fix [FS#6110]: Reserve cargo only after unloading finished or if the vehicle has the desired cargo already

git-svn-id: http://svn.openttd.org/trunk@26918 6aa0318a-3be1-0310-93fa-89fd2396df07