Log Message:
Update m17n-lib to 1.6.0.

2010-03-30  Kenichi Handa  <handa@m17n.org>

	* configure.ac: Version changed to 1.6.0.

2010-03-19  Kenichi Handa  <handa@m17n.org>

	* configure.ac: Version changed to 1.6.0pre.

2010-02-18  Kenichi Handa  <handa@m17n.org>

	* configure.ac (M17N_BINARY_VERSION): New variable.
	(M17N_MODULE_DIR): New variable.  AC_SUBST it.

2009-11-05  Kenichi Handa  <handa@m17n.org>

	* configure.ac: Check if the OTF library has OTF_drive_gpos2 ().

2009-10-05  Kenichi Handa  <handa@m17n.org>

	* configure.ac: Version changed to 1.6.0.
	(API_VERSION): Changed to 4.0.4.