version 0.5.6

	o lib sources structure defined
	
	o bool sublib 
	
	o new header file sl_io.h (sl_input.h + sl_writer.h)

	o "io" sub-library updated, "complex" sub-library bugfixes

	IMPORTANT NOTICE: if you have installed any previous Spar library, 
			  uninstall all file (by "make uninstall") before 
			  install. 
	
version 0.5.5

	o API reference, FAQ, BUG-REPORT and man page updated

	o added some examples (tutorial dir.)

	o new math functions (sqrt, cbrt, fib, pow2)

	o library updates (complex, vector, variable)

	o variables deletion is no longer supported: too dangerous

	o some other minor fixes in the parser


version 0.5.4
	o major bug-fixes:
		o systems without readline libs
		o spar versioning
		o function sl_variable_get 
		o btree sublib

	o sub-libs "writer" and "input" merged into "IO" 
	   sub-library (with the same header files)
	   
	o modules development improved and fixed

	o text front-end improved and bugs were fixed 

	o configure.in script improved and fixed
	
	o math library extended


version 0.5.3
	o this release includes only major bug-fixes: please upgrade your
	   spar installation with this one!! (see the Change-Log)


version 0.5.2
	o spar library is completely modular (there is a sublib for each 
	   component of the library). This should aids the developers to
	   add source file and features in a more efficient way. 	

	o modules manager improvements and some minor bugs (dlclose) where
	   fixed

	o added isinf isnan finite functions

	o RPM and SRPM packages


version 0.5.1
	o sort library
	
	o math library 
		* some bug-fixes
		* better configure.in compatibility

	o some installation fixes

	o many code cleanups


version 0.5
	o new development series
