Updated name of error from G_CONVERT_ERROR_NOT_LOCAL_FILE to

Updated name of error from G_CONVERT_ERROR_NOT_LOCAL_FILE to

	* glib/gconvert.h:
	* glib/gconvert.c: (g_filename_from_uri):
	Updated name of error from G_CONVERT_ERROR_NOT_LOCAL_FILE to
	G_CONVERT_ERROR_NOT_ABSOLUTE_FILE_URI.

	* tests/.cvsignore:
	* tests/uri-test.c:
	Added a lot more test for the new URI functions, including a
	number that seem to indicate some minor bugs.