They are just warnings that the method of specifying Config fuses has changed and that the "old" methods might not be supported in the future. As of now they are supported so it is of no issue now. See this post for further explanation (and follow links within for all the details).
http://www.picbasic.co.uk/forum/showthread.php?t=543
Paul Borgmeier
Salt Lake City, Utah
USA
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