Implement a new modify function for the CIB API which searches for <tag id=/>

and updates all its fields (not children yet)

For sanity's sake, call is modify and rename the old modify to update.
Update everyone to use the new name for the old function.

CVS patchset: 7808
CVS date: 2005/10/12 18:28:21

Mercurial revision: 3174bd4e02a8c3befc01fca5c0549db82b4fce97