Update to the newest gnulib.
* gnulib-local/lib/localename.c.diff: Remove file.
* gnulib-local/lib/localename-table.h.diff: Remove file.
* gnulib-local/lib/tsearch.c.diff: Remove file.
* gnulib-local/modules/tsearch.diff: Remove file.
* gnulib-local/Makefile.am (EXTRA_DIST): Remove them.
* libtextstyle/configure.ac: Update for changed naming convention of module
indicator variables.
