gnat_rm.texi, [...]: Update documentation of -gnatw.o Fix name of Wide_Wide_Latin_1...

gnat_rm.texi, [...]: Update documentation of -gnatw.o Fix name of Wide_Wide_Latin_1/9 file names Add...

2007-12-19  Robert Dewar  <dewar@adacore.com>

	* gnat_rm.texi, gnat_ugn.texi: Update documentation of -gnatw.o
	Fix name of Wide_Wide_Latin_1/9 file names
	Add documentation for Ada.Exceptions.Last_Chance_Handler (a-elchha.ads)
	Add missing documentation for Ada.Wide_[Wide_]Characters.Unicode
	Add missing documentation for Ada.Command_Line.Response_File
	Update list of warning letters for Warnings pragma
	Add documentation for pragma Unmodified

From-SVN: r131086