* gui/component/select-names/Makefile.am: Set CLEANFILES directly
instead of using `+='.
* backend/pas/Makefile.am: Rename `LDAP_BACKEND_SOURCES' to
`LDAP_BACKEND_FILES'.
* backend/ebook/Makefile.am: Set CLEANFILES directly instead of
using `+='.
svn path=/trunk/; revision=12840