Encoding_instantiate keeps the type of the green part complexe.
Encoding_simple2 (bad name) replaces the complexe types by constants.

One day we can add a better comprehesion of (int,int) array for instance
 inside encoding_simple2 or inside the printers.

encoding_enumeration add projection for enumerated type. Seems to work (on valid and not valid goal) for simplify, spass, eprover

see examples/programs/sorted_list.mlw with eprover, spass, simplify!!

encoding_enumeration must be used with encoding_decorate and encoding_instantiate if an enumeration type is kept.

- bring driver syntax closer to that of theories
- some simple API improvements

Since its already incorrect no encoding for simplify, and also no trigger because its buggy inside simplify

- everything is converted to the new shiny way of doing things.
  Well, everything except Gappa, which seems very unifinished anyway,
  and Encoding_instantiate, which is too complex and would like to 
  update it with François.

Also, I commented a little piece of exception reporting in manager/,
will see it with Claude.

THIS IS STILL A WORK IN PROGRESS!
Please inform me about any bugs, ugly APIs, and proposed corrections.

All the non-implemented things, mentioned in the previous commit
message are still in the TODO list and will be done soon.

bench : ajout d'un bench pour tester tous les provers sur des buts triviaux. Cela peut permettre de détecter un mauvais driver ou printer.

utilisation d'encoding decorate tant que les types finis ne sont pas correctement traités ( unit des programmes )

programs: WP for exceptions
why.conf: removed -debug flag for alt-ergo

new transformation (currently equivalent to identity) for tptp driver