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Util now is a small module containing misc functions.

+ fix a bug in "compare"

+ rename Debug.Opt to Debug.Args to avoid conflicts

+ create AUTHORS file
+ fix the linking exception in LICENSE
+ update the "About" in IDE
+ remove the trailing whitespace
+ inflate my scores at Ohloh

induction_int_lex : new induction tactic (labels only, no heuristic provided) for ordered int tuples.

induction tactic: cleaning up (an old version of tactic (induction_ty) is removed). Induction on integers will be fixed soon (actually does not work)

Locations and labels were leaking into constant definitions, thus
preventing TPTP provers to unify them when equal. Example:
const_shdqproofssldtdtsltest_harnessdtmlwdq_17_23_24sh_3 <> const_3.

Indeed their inlining causes an exponential growth of the formulas for all
the provers that are relying on the "eliminate_if" transformation.

  - the symbols that appear in the metas are identified in the xml by
    their position in the task:
    - in which declaration
    - in which definition (if that apply otherwise -1)
    - in which constructor(or case in inductive predicate) (if that apply otherwise -1)
    - in which field (if that apply otherwise -1)

  - the md5sum of the prefix of the task that end with the declaration is used to know if the
    symbol have been changed, and if it is obsolete.

  - currently metas that contains obsolete symbol are removed.

   - add functions to Hashtbl.S
   - without ocaml 3.12 its not possible to do that for Hashtbl without
     copying the signature
   - "open Stdlib" hides the polymorphic hashtbl, perhaps a good idea
     since that avoid errors.

Provide nine transformations: split_(goal|all|premise)_(full|right|wp).
split_*_full splits as far as it can, split_*_right produces linear
number of subformulas, split_*_wp stops at the "stop_split" label.
The name "split_goal" is kept for compatibility with older session
files and denotes the same transformation as "split_goal_wp".

Thanks to Johannes Kanig for the suggestion.

and Debug.register_stop_flag into register_flag. While information
flags (selectable by --debug-all) are more common, it is safer to
treat a generic debug flag as behaviour-changing by default.

 (metas, debug flags, transformations, formats) except for label.

This description is used in --list-*. The description can use any of
the formatting markup of Format "@ " "@[",...

Transformations can also specify from which metas and labels they
depend, and add informations about how they are interpreted.

TODO:
  - complete and correct the documentation
  - when a transformation use Trans.on_meta, it should be possible to
    add an interpretation of the metas in the documentation.
  - recover a summary version of --list-* ?
  - be able to export in latex?

Transformation induction sur l'ordre lexicographique suivant la définition des types : les labels d'utilisateur pris en compte

First working prototype of induction tactic working with lexicographic orders according to type definition