Remove my iso8859-1 -> iso-8859-1 hack and use

Remove my iso8859-1 -> iso-8859-1 hack and use

2001-07-19  Jeffrey Stedfast  <fejj@ximian.com>

	* camel-mime-utils.c (rfc2047_decode_word): Remove my iso8859-1 ->
	iso-8859-1 hack and use camel_charset_get_iconv_friendly_name()
	instead.
	(rfc2184_decode): Use camel_charset_get_iconv_friendly_name()

	* camel.c (camel_init): Call camel_charset_map_init().

	* camel-charset-map.c (camel_charset_map_init): New function to
	initialize the charset-equivalent lookup table. To be called by
	camel_init().
	(camel_charset_get_iconv_friendly_name): New function to try and
	convert a charset into something that iconv is more likely to
	accept.