Changes to Earth Package
------------------------

1.0-6 Initial release

1.0-7 Minor change to summary.earth formatting.  Man page fixes.

1.0-8 Fixed bug where plotmo failed under these circumstances: 
      form <- Volume ~ .; a <- earth(form, data = trees); plotmo(a)

1.1-0 Default minspan is now 1 (was 0)
      Fixed potential crash in PrintForwardStep if nTrace>1
      Added a missing drop=FALSE to backward()
      Minor code, comment, and man page fixups

