0.5.3  - ?/7/2008 - bugfix release
	* many fixes concerning the CProp hiearchy
	* coercion database simplified
	* coercion hiding now works properly for coercions to funclass
	* triangular pullback works better with coercions to the function space
	* notation for lists fixed to add a break point after the separator
	* notation for the existential is now user definable
	* \infrule layout added, allows to display readable fractions

0.5.2  - 2/7/2008 - better-usability-for-the-working-constructivist release
	* refinement of match fixed to prevent useless unfolding,
	  head_beta_reduce is used instead of whd ~delta:true
	* CProp hierarchy, interleaved with type (used to be a single universe)
	* Notation now allows to set the precedence level of subterms, avoiding
	  unnecessary parenthese
	* UTF-8 / TeX conversion table is now available in the Help menu
	* Notation subsystem described in the manual
	* EBNF term grammar is now available in the View menu (and is in sync with
	  the currently loaded notation)
	* Rewrite tactic (in hypothesis) now computes the right sort and
	  uses the right equality elimination principle
	* URI free interpretation and coercion statements (scripts are almost
	  relocatable now)
	* elim and cases tactic now support a pattern to specify hypotheses that 
	  are generalized before the elimination. 

0.5.1  - 29/5/2008 - minor bug fix release
	* visualization of inductive types reports the number of fixed parameters
	* a wrong context was used to refine fixpoints arguments
	  when trying to optimize out the letin (grep for `AvoidLetIn):
	  (let rec f x = Fix... in f t ---> Fix... t)
	* auto fixed to prefer goals with metavariables to closed ones,
	  added new syntax to specify the universe "auto by t1, t2, ...",
		updated documentation describing all auto parameters
	* declarative language syntax and documentation ported to the new 
	  auto parameters

0.5.0  - 9/5/2008 - bugfix release
	* first release not considered experimental

0.4.98 - ??/11/2007 - bugfix release
	* compiles against camlp5 >= 5.0  
	* changed lablgtksourceview module name since it is now part of lablgtk2

0.4.97 - 16/11/2007 - initial release