Update to 0.48

Release 0.48 - 23 September, 2010
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* depend on ExtUtils::LibBuilder for library compilation.

Release 0.47 - 18 September, 2010
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* fixed a problem with 160 char being considered whitespace on many unixes.
  Thanks, again, to Philip Kime :)

Release 0.46 - 24 August, 2010
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* support entry keys in unicode. Thanks to Philip Kime.

Release 0.45 - 8 June, 2010
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* fixed ldconfig call under linux, now only if the user is root.
* fixed library installation path when user specifies different
  installbase during install action.
  (thanks to Fran巽ois for both fixes)

Release 0.44 - 9 May, 2010
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* RPath information on link - Thanks to Jens Rehsack
* removed dependency on 'UNIVERSAL' as it is now built-in
  (change for perl 5.12 deprecation)

Release 0.43 - 18 March, 2010
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* small fix on warnings issue
* run ldconfig after installing the .so file under linux

(markd)