encodings.pl: New file.

encodings.pl: New file.

	* scripts/encodings.pl: New file.
	* Makefile.in: Rebuilt.
	* Makefile.am (convert_source_files): Added IOConverter.java.
	* gnu/gcj/convert/UnicodeToBytes.java (UnicodeToBytes): Extend
	IOConverter.
	(getDefaultDecodingClass): Canonicalize default encoding name.
	(getEncoder): Likewise.
	* gnu/gcj/convert/BytesToUnicode.java (BytesToUnicode): Extend
	IOConverter.
	(getDefaultDecodingClass): Canonicalize default encoding name.
	(getDecoder): Likewise.
	* gnu/gcj/convert/IOConverter.java: New file.

From-SVN: r35432