r21981 - gnucash/trunk - Add function to set a feature as used and use it for a first feature:

[Geert Janssens]

Author: gjanssens
Date: 2012-02-10 09:40:52 -0500 (Fri, 10 Feb 2012)
New Revision: 21981
Trac: http://svn.gnucash.org/trac/changeset/21981

Added:
   gnucash/trunk/src/core-utils/gnc-features.c
   gnucash/trunk/src/core-utils/gnc-features.h
Removed:
   gnucash/trunk/src/app-utils/gnc-features.c
   gnucash/trunk/src/app-utils/gnc-features.h
Modified:
   gnucash/trunk/po/POTFILES.in
   gnucash/trunk/src/app-utils/Makefile.am
   gnucash/trunk/src/core-utils/Makefile.am
   gnucash/trunk/src/engine/gncInvoice.c
   gnucash/trunk/src/gnome-utils/gnc-file.c
Log:
Add function to set a feature as used and use it for a first feature:
Credit Notes.
Other changes in this commit:
* The feature code moved to core-utils, because the engine can't use
app-utils.
* I remove the gettext wrapper around the feature description. As
mentioned on the mailing list, by definition unknown features can't have
translated descriptions.