New module 'count-trailing-zeros'.

* MODULES.html.sh: Mention it.
* lib/count-trailing-zeros.c, lib/count-trailing-zeros.h:
* m4/count-trailing-zeros.m4, modules/count-trailing-zeros:
* modules/count-trailing-zeros-tests:
* tests/test-count-trailing-zeros.c:
New files.

modules/count-trailing-zeros

@@ -0,0 +1,25 @@
+Description:
+Counts the number of trailing 0-bits in a word.
+
+Files:
+lib/count-trailing-zeros.c
+lib/count-trailing-zeros.h
+m4/count-trailing-zeros.m4
+
+Depends-on:
+extern-inline
+
+configure.ac:
+gl_COUNT_TRAILING_ZEROS
+
+Makefile.am:
+lib_SOURCES += count-trailing-zeros.c
+
+Include:
+"count-trailing-zeros.h"
+
+License:
+LGPLv2+
+
+Maintainer:
+all