version 0.2.1 fixes compilation bugs for gcc 3.4/4.0

[martin f k. <ma...@ma...>]

Version 0.2.1 of libkdtree++ now compiles cleanly with GCC 3.4 and
4.0pre0.

This fixes SourceForge Bug#1066662.

New files are available at

  http://people.debian.org/~madduck/packages/stage/libkdtree++/source
  http://people.debian.org/~madduck/packages/stage/libkdtree++/binary

Thanks to Romain Behar for spotting these!

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